First attempt!

[JimLynchCodes]

• If this PR is a new feature, reference an issue where a consensus about the design was reached (not necessary for small changes)
  Implement .click(x,y) to enable clicking at x, y coordinates #191

• [TODO] Make sure all of the significant new logic is covered by tests

are there currently tests for the click function?

• Rebase your changes on master so that they can be merged easily
• Make sure all tests and linter rules pass

(how do I run linter?)

• [TODO] If you've changed APIs, update the documentation in README and /api/README

Also, I'm not quite sure where the "client" object is coming from in the original arguments list for click. Can someone help explain that?

Note: This code doesn't actually work. I am just putting this up here because I think I'm close, but I'm stuck. I want the api to be .click(830, 320) where 830 is the x coordinate and 320 is the y coordinate. However, when I try this in a test project I'm currently getting this error:

Error: click(): node for selector 831 doesn't exist

[JimLynchCodes]

Hey, has this been looked at all? Any comments or suggestions?