Create Homebrew WADs from passed ZIPs

[spotlightishere]

In order to provide Homebrew content to the user, we must download it to the user's console. Our method consists of downloading a dummy WAD with its first content as the ZIP, alongside as a NAND application or forwarder.

Creating such in an automated fashion will require a few tasks:

• Allow invocation by app ID
• Update registered metadata to new title version upon generation, etc
• Generate SD contents
• Generate NAND contents
• Generate forwarder contents
• Populate tickets for title within database for WiiSOAP - see Implement ticket sync WiiSOAP#2 for efforts there

This will be dependent on wii-tools/wadlib#6 for wadlib.AddContent.