Include ability to compress and upload to Weebly

[bdeanindy]

The legacy version of the Weebly CLI, written in Ruby only supported the ability to upload your compressed app (.zip) up to Weebly servers for continuing development, and it would be nice to include that ability from within this version.

[bdeanindy]

Shifting this to the improvement and stabilizing of the foundation because after working with this more, the library needs this feature to really add that "cherry on-top" value for developers.