Add other multiple installation methods for different OS

[rbalman]

The installation instructions at Readme should include:

• brew for macos
• script for linux
• script for windows

[omegazyadav]

I have sent the application for creating fedora package. When it is approved, we would have fedora package for cfn-compose.

Tracker: https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=2179633
cc: @rbalman