feat: Absolute encoder calibration notebook

data/modules/armarx_integration/robots/armar6/rt.json

...tion/robots/armar6/util/absolute_encoder_calibration.json

data/modules/armarx_integration/robots/armar7/rt.json

...tion/robots/armar7/util/absolute_encoder_calibration.json

data/modules/armarx_integration/robots/armarde/rt.json

...ion/robots/armarde/util/absolute_encoder_calibration.json

data/modules/h2t/absolute_encoder_calibration.json