Support for bouncetime

[rm-hull]

Pull request #8 added faux-compatibility for bouncetime by adding an optional parameter, so that existing code doesn't break. This issue is a placeholder to add real support for bouncetime.

Related (originating) issue: #6

[shaunmulligan]

Hey @rm-hull thanks for this great library, I am currently trying to use it for a simple user interface and hitting into the problem of multiple edge events per button press. Do you have any recommended work around or tips/pointers on implementing this feature?

[gw0]

Isn't the solution to just remember the time at millisecond resolution of the last edge to which the library responded and then ignore all edges until bouncetime time has passed?

[adonespitogo]

Is there a work in progress on this? How can we contribute for this?

[TomW1605]

hi, is there any progress on this one? also happy to take a shot at it if that would help

[rm-hull]

Go for it. I'm not active on this project but will merge PRs and publish to pypi if folks want to submit changed