Add options to blissify function

It's about time we update the blissify command to do a bit more for us.

Usage:
$ blissify options deviceCodename

Options:
-h | --help: Shows the help dialog
-c | --clean: Clean up before running the build
-d | --devclean: Clean up device only before running the build
-v | --vanilla: Build with no added app store solution **default option**
-g | --gapps: Build with Google Play Services added
-f | --foss: build with FOSS (arm64-v8a) app store solutions added **requires vendor/foss**
-F | --fossx: build with FOSS (x86_64) app store solutions added **requires vendor/foss**

This method is also backwards compatible with the legacy blissify command also:
$ blissify deviceCodename

Change-Id: I921971f380ea3b384aa06d435eb88a5c2e7d193f
2 files changed