Fork and edit lita-google-images handler

This commit forks and edits the lita-google-images handler.

[15795093951153](https://app.asana.com/0/15795093951153/15795093951153)
Edit help text

This commit changes the help text.

[15795093951153](https://app.asana.com/0/15795093951153/15795093951153)
Edit google-images handler to abstract url method.

This commit abstracts the get url method.
Merge pull request #1 from sqm/15795093951153-fork-and-edit-lita-google-images-repo

Fork and edit lita google images repo