Reset about react-native-sketch

[jgrancher]

@SaintEmbers Yeh, it's actually in my roadmap.
I need to find a way to trigger the reset from an outer component (it didn't work properly when I started working on it, so I put that feature aside for the first release.)

For now, you can still play with the _clearButton property that triggers it in RNSketch.m, setting its position, title... : https://github.com/jgrancher/react-native-sketch/blob/master/RNSketch/RNSketch.m#L62

[thekevinbrown]

I submitted #13 for this.

[thekevinbrown]

Now that #15 has been merged I think we can close this issue.

[jgrancher]

@SaintEmbers : @blargity is right, his work has been merged and you can now directly call mySketch.clear() which will reset the drawing. Closing the issue :)