Introduce Golang examples

[vijaiaeroastro]

This PR introduces 7 golang examples (same as Python examples)

• 3mf_convert.go
• add_triangle.go
• beam_lattice.go
• color_cube.go
• create_components.go
• create_cube.go
• extract_info.go

It currently imports the lib3mf library from https://github.com/3MFConsortium/lib3mf.go
Once ACT is patched / a decision is made on patching the bindings in the repo, examples can be adapted to work with local binding files

This PR also tests the create_cube.go script in Windows, Linux and OSX as a part of the deploy stage.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 71.11%. Comparing base (5abad20) to head (bd16ead).

Additional details and impacted files

@@           Coverage Diff            @@
##           develop     #390   +/-   ##
========================================
  Coverage    71.11%   71.11%           
========================================
  Files          271      271           
  Lines        30317    30317           
========================================
  Hits         21561    21561           
  Misses        8756     8756           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.