cli - init a cordova project

[Keyang]

As cordova app dev, I want to update an existing cordova project using rhmhcp command line tool.

rhmhcp command line should init a cordova project at current folder with following acts:

• [x] Init rhmhcp.json file for config persistence
• [x] Add hcp cordova plugin
• [x] Add configuration
• [ ] Add scripts
• [ ] add cordova hooks

[Keyang]

This is part of #2

[evanshortiss]

@Keyang currently the CLI has a type flag. I think we can just figure this out by checking the dir for:

• .xcodeproj - iOS
• config.xml - Cordova
• .gradle - Android