Create jquery.simulate.d.ts

I choose to go with a more relaxed definition (versus specifying the exact options allowed for each event type) because it would have required duplicating event definitions from lib.d.ts (the properties of the events in lib.d.ts are all mandatory whereas they would be optional in this usage).
Create jquery.simulate-tests.ts
Update jquery.simulate-tests.ts
Merge pull request #1644 from derekcicerone/patch-38

Create jquery.simulate.d.ts