Lamp testbench in Rust around the HPCS 6500

lampbench station / export / label / tm30 / calibrate replace the Python
lamp_station.py, lamp_export.py, label_printer.py, tm30.py and
calibration.py that lived in HPCS6500-py. The driver is a submodule
(HPCS6500/, like mppt-testbench). Workspace crates: tm30 (TM-30-18 port of
colour-science 0.4.7), brother-ql (raster protocol, byte-identical to
brother_ql) and lamp-label (QR + ID labels for the QL-820NWB).

Bundles are byte-identical to lamp_export.py's (golden tests); the station
runs end to end in a test against the simulated instrument.

tests/golden/bundles/station_full/spd.csv

@@ -0,0 +1,351 @@
+wavelength_nm,value
+380.00,0.000365606
+381.92,0.0052701
+383.84,0.0174624
+385.76,0.0369744
+387.68,0.0630038
+389.60,0.0924528
+391.52,0.129915
+393.44,0.17215
+395.36,0.215405
+397.28,0.264549
+399.20,0.321514
+401.12,0.388303
+403.04,0.466088
+404.96,0.555115
+406.88,0.656321
+408.80,0.771487
+410.72,0.903509
+412.64,1.05381
+414.56,1.22285
+416.48,1.41098
+418.40,1.61749
+420.32,1.84539
+422.23,2.09653
+424.15,2.373
+426.07,2.67501
+427.99,3.0024
+429.91,3.36028
+431.83,3.75018
+433.75,4.17195
+435.67,4.63166
+437.59,5.18756
+439.51,5.79644
+441.43,6.40441
+443.35,7.07131
+445.27,7.79616
+447.19,8.57664
+449.11,9.3994
+451.03,10.2441
+452.95,11.0834
+454.87,11.8836
+456.79,12.603
+458.71,13.1972
+460.63,13.6254
+462.55,13.8458
+464.47,13.8481
+466.39,13.6468
+468.31,13.2686
+470.23,12.7571
+472.15,12.1536
+474.07,11.5036
+475.99,10.8538
+477.91,10.2349
+479.83,9.66925
+481.75,9.16429
+483.67,8.7167
+485.59,8.32288
+487.51,7.97234
+489.43,7.65421
+491.35,7.35693
+493.27,7.06942
+495.19,6.78593
+497.11,6.50668
+499.03,6.23555
+500.95,5.9772
+502.87,5.73427
+504.79,5.50867
+506.70,5.29416
+508.62,5.10508
+510.54,4.94335
+512.46,4.80941
+514.38,4.70291
+516.30,4.62301
+518.22,4.56511
+520.14,4.52752
+522.06,4.4981
+523.98,4.48587
+525.90,4.49319
+527.82,4.50912
+529.74,4.53248
+531.66,4.56252
+533.58,4.59904
+535.50,4.64247
+537.42,4.69146
+539.34,4.747
+541.26,4.80906
+543.18,4.87636
+545.10,4.9496
+547.02,5.02659
+548.94,5.10692
+550.86,5.18972
+552.78,5.27489
+554.70,5.36223
+556.62,5.44919
+558.54,5.53354
+560.46,5.61387
+562.38,5.69069
+564.30,5.76287
+566.22,5.83302
+568.14,5.90044
+570.06,5.96431
+571.98,6.02501
+573.90,6.08041
+575.82,6.13156
+577.74,6.17863
+579.66,6.22191
+581.58,6.26121
+583.50,6.29569
+585.42,6.32684
+587.34,6.35555
+589.26,6.38227
+591.17,6.4077
+593.09,6.43663
+595.01,6.46485
+596.93,6.48889
+598.85,6.51145
+600.77,6.53127
+602.69,6.54893
+604.61,6.56654
+606.53,6.58564
+608.45,6.60829
+610.37,6.63313
+612.29,6.65904
+614.21,6.68654
+616.13,6.71518
+618.05,6.74523
+619.97,6.77501
+621.89,6.8038
+623.81,6.83309
+625.73,6.86293
+627.65,6.89347
+629.57,6.92434
+631.49,6.95343
+633.41,6.98175
+635.33,7.00832
+637.25,7.03308
+639.17,7.05641
+641.09,7.07872
+643.01,7.1005
+644.93,7.12156
+646.85,7.1415
+648.77,7.16026
+650.69,7.17672
+652.61,7.19094
+654.53,7.20409
+656.45,7.21726
+658.37,7.23105
+660.29,7.24528
+662.21,7.25866
+664.13,7.27171
+666.05,7.28519
+667.97,7.29889
+669.89,7.31371
+671.81,7.32813
+673.72,7.34297
+675.64,7.35832
+677.56,7.37432
+679.48,7.39331
+681.40,7.41502
+683.32,7.44201
+685.24,7.46915
+687.16,7.49027
+689.08,7.50719
+691.00,7.51955
+692.92,7.5266
+694.84,7.52866
+696.76,7.52509
+698.68,7.51701
+700.60,7.5076
+702.52,7.49724
+704.44,7.4881
+706.36,7.47958
+708.28,7.46992
+710.20,7.45709
+712.12,7.43947
+714.04,7.41602
+715.96,7.38839
+717.88,7.35827
+719.80,7.32592
+721.72,7.29185
+723.64,7.2557
+725.56,7.21711
+727.48,7.17589
+729.40,7.13404
+731.32,7.10174
+733.24,7.06725
+735.16,7.01878
+737.08,6.96538
+739.00,6.90749
+740.92,6.84683
+742.84,6.78526
+744.76,6.72237
+746.68,6.65787
+748.60,6.59162
+750.52,6.52145
+752.44,6.44783
+754.36,6.37136
+756.28,6.2922
+758.19,6.21157
+760.11,6.1295
+762.03,6.04717
+763.95,5.96545
+765.87,5.88354
+767.79,5.80118
+769.71,5.73171
+771.63,5.66075
+773.55,5.57428
+775.47,5.48691
+777.39,5.39926
+779.31,5.31135
+781.23,5.22406
+783.15,5.1373
+785.07,5.05031
+786.99,4.96372
+788.91,4.87709
+790.83,4.7909
+792.75,4.70567
+794.67,4.62128
+796.59,4.53732
+798.51,4.45255
+800.43,4.36692
+802.35,4.2806
+804.27,4.2077
+806.19,4.13485
+808.11,4.04907
+810.03,3.96349
+811.95,3.87812
+813.87,3.79244
+815.79,3.70668
+817.71,3.62118
+819.63,3.53542
+821.55,3.45007
+823.47,3.36513
+825.39,3.28073
+827.31,3.19686
+829.23,3.11396
+831.15,3.03173
+833.07,2.96166
+834.99,2.89317
+836.91,2.81428
+838.83,2.73634
+840.74,2.65972
+842.66,2.58348
+844.58,2.50853
+846.50,2.43512
+848.42,2.36289
+850.34,2.29287
+852.26,2.22463
+854.18,2.1583
+856.10,2.09442
+858.02,2.03205
+859.94,1.97967
+861.86,1.92886
+863.78,1.87128
+865.70,1.8152
+867.62,1.76081
+869.54,1.70742
+871.46,1.65477
+873.38,1.6029
+875.30,1.55129
+877.22,1.50061
+879.14,1.45181
+881.06,1.40512
+882.98,1.36101
+884.90,1.3243
+886.82,1.28827
+888.74,1.24682
+890.66,1.20538
+892.58,1.16375
+894.50,1.12204
+896.42,1.08097
+898.34,1.04122
+900.26,1.00321
+902.18,0.966682
+904.10,0.931466
+906.02,0.897212
+907.94,0.863274
+909.86,0.834488
+911.78,0.806232
+913.70,0.77413
+915.62,0.743313
+917.54,0.713611
+919.46,0.684714
+921.38,0.656447
+923.30,0.629011
+925.21,0.602572
+927.13,0.577308
+929.05,0.553133
+930.97,0.532903
+932.89,0.51344
+934.81,0.491842
+936.73,0.471207
+938.65,0.451653
+940.57,0.433122
+942.49,0.41551
+944.41,0.398834
+946.33,0.382978
+948.25,0.367794
+950.17,0.352984
+952.09,0.338755
+954.01,0.326487
+955.93,0.313683
+957.85,0.298334
+959.77,0.282348
+961.69,0.266334
+963.61,0.251037
+965.53,0.236595
+967.45,0.223076
+969.37,0.211188
+971.29,0.200452
+973.21,0.192062
+975.13,0.184205
+977.05,0.175077
+978.97,0.166767
+980.89,0.159442
+982.81,0.152627
+984.73,0.145832
+986.65,0.138907
+988.57,0.131661
+990.49,0.124845
+992.41,0.119552
+994.33,0.1145
+996.25,0.108742
+998.17,0.102876
+1000.09,0.0967195
+1002.01,0.0904836
+1003.93,0.0847852
+1005.85,0.0797888
+1007.77,0.0751852
+1009.68,0.0708111
+1011.60,0.0669758
+1013.52,0.0630191
+1015.44,0.0588567
+1017.36,0.0552771
+1019.28,0.0520897
+1021.20,0.0489097
+1023.12,0.0454581
+1025.04,0.0417723
+1026.96,0.0376737
+1028.88,0.0336676
+1030.80,0.0305725
+1032.72,0.0275745
+1034.64,0.0244492
+1036.56,0.0215368
+1038.48,0.0185852
+1040.40,0.0154897
+1042.32,0.0121245
+1044.24,0.00879848
+1046.16,0.0056708
+1048.08,0.00352862
+1050.00,0.00202557