Google Analytics Panel UI

1. Opening a new pull request on a new branch due to the old pull request's diff being weird.

2. Fix UA code validation, fixed wrong comment

3. Also duplicates commits from GA-Panel-UI branch due to weird diff:
https://github.com/KSHSK/WAVED/commit/c0ae403c34736bbc3879736178d1557bffe85432
https://github.com/KSHSK/WAVED/commit/1c7db0ebf5ade16e68b4e8e0da653d989d36665f
https://github.com/KSHSK/WAVED/commit/97d479125eb2a08b5dd2ac953450230fc255bace
https://github.com/KSHSK/WAVED/commit/f34724c58b7c9d3b289170629248fc6821f0c17b