[v0.9.2] - Added support for creating the actual godot projects files when adding a new project

When adding a new project via 'New Project':

You can now use the 'Create New' button to generate the project files for a new project. The selected version determines a few minor things for 3.x and 4.x projects (i.e. icon.png vs icon.svg). Before this change, you could only select existing projects. All other defaults are used. If you need other options, let me know.