Debounce Functionality Needed to reduce Api usage charges

[MattStrybis]

I'm submitting a...

[ ] Regression (a behavior that used to work and stopped working in a new release)
[ ] Bug report  
[X] Feature request
[ ] Documentation issue or request
[ ] Support request => Please do not submit support request here, instead see https://github.com/psykolm22/angular-google-place/blob/master/CONTRIBUTING.md#question

Current behavior

New call is sent to google on each keystroke incuring large usage charges

Expected behavior

Wait till the user finishes typing to submit the call to the places API

What is the motivation / use case for changing the behavior?

Reduce API charges

Please let me know if I am missing something.

Thanks!