Express version using builtin sqlite3 libraries on Android/iOS/macOS

[brodycj]

This would be a simpler plugin version with no external sqlite dependencies and no Windows platform build. I would also like to include browser platform support ref: #297/#576 and remove Web SQL transaction calls (discussed in #720).

I hope to deliver this in the near future, unfortunately cannot make any promises right now.

P.S. The new express plugin version should work with no issues on PhoneGap Build. I do not expect to provide free support for use on PhoneGap Build. Also some other features not expected to be part of the new express version:

• ability to reconfigure database location on iOS or any other platforms
• pre-populated databases
• REGEXP
• SELECT BASE64(...)