Increase convenience of axii by suggesting to use ccache when creating new workspace

I want to implement:

• In create_workspace_dialog(path) armarx_setup/cli/workspace/integration.py:93. Ask the user if for the new workspace ccache should be enabled by default. If yes, uncomment the workspace variables in armarx-workspace.json by adding ccache_enabled as a bool variable to Config.get_defaults(cls) in armarx_setup/core/workspace/config.py. The option should default to yes.

If @kartmann or @dreher approve I can create a PR for this.