Add skymodel and create user path in docker

Docker/Dockerfile

steps/find_skymodel_cal.cwl

test_data/skymodels/3C196-pandey.skymodel

test_data/skymodels/3c147-SH.skymodel

test_data/skymodels/3c286-SH.skymodel

test_data/skymodels/3c287-SH.skymodel

test_data/skymodels/3c295-twocomp.skymodel

test_data/skymodels/3c380-SH.skymodel

test_data/skymodels/3c48-SH.skymodel

test_data/skymodels/A-Team_4_Highres.skymodel.REMOVED.git-id

test_data/skymodels/A-Team_lowres.skymodel

test_data/skymodels/Ateam_LBA_CC.skymodel.REMOVED.git-id

test_data/skymodels/Calibrators_SH_lowres.skymodel