Script for customising package, app name, modules

[ateslovan]

Create a script that will allow us to:

• specify a custom package name
• specify the feature module name
• choose what modules from the template want in our project
• specify the app name
• choose if we want to use compose / old system ui

[ateslovan]

For now, I created a script that will give us the option to specify a custom package name & app name.
Still to decide if in the future we'll want to chose what modules to use from the template and the name of the feature module. Compose UI is on by default, so this one does not make sense anymore.