Added copy-theme command skeleton
Saving the game
Added new tests. Copying works. Need to add functionality for 'app/bladeset/' and 'app/aspect'
Working command. Ready for refactoring.
Added additional test. Now logging every successful copy. Refactored code.
Merge branch 'develop' into copy_theme_command_247
Fixed a small mistake in the arguments' description
Refactored code
Merge branch 'develop' into copy_theme_command_247
Merge pull request #887 from BladeRunnerJS/copy_theme_command_247

Copy theme command - resolves #247