feat(cli): add Alloy app to create menu

[m1ga]

fixes #14386

Add an option to create an Alloy app into the create menu:

Notes
I've added a new type app_alloy to have it in the menu. As soon as it's selected I'll store isAlloy to run the alloy command at the end and set the type back to app so it will use the same flow as before. In order to have less duplicated code I've created a base_app file and include that in app_alloy and app.

Test:

• ti create
• select 1 or 2
• check the project at the end