added click as trigger and template support

[majestixx]

I have added the attributes template and trigger (hover and click supported).

[softwaredoug]

Looks great. @majestixx. Thanks for the pull request. We also need to update the following:

• Tests that cover clicking
• Update the readme

Nice to have

• Update the gh-pages branch to demo clicking

[softwaredoug]

For tests, look at here at the places that test hovers, I think we can copy those tests for clicking and change the events we manually trigger.

[majestixx]

Thanks. I will have a look at that :-)

[JayAndBee]

Hey, I know this is a few months old, but I'd like to implement inspector-gadget with click in my project. So maybe you can start merging the new feature into the master branch.

Best,