[#42646581] Add TubeRack spec, in progress
[#42646581] Spec written, doesn't pass yet
[#42646581] Add Tube Rack Resource and add Container module for dimensions
[#42646581] Add Create Tube Rack Resource
[#42646581] Tube Rack spec passes
[#42646581] Small fix in the spec
Merge pull request #70 from maxigit/42646581_expose_tube_rack_in_the_api

42646581 expose tube rack in the api