I've added a function for Android to allow the disabling of wakelock release
on pause. This is for my use case where the screen will be off most of the
time the wakelock is enabled. I added usage for it to the readme, along with
the existing functions.
By default, the plugin will automatically release a wakelock when your app is paused (e.g. when the screen is turned off, or the user switches to another app). It will reacquire the wakelock upon app resume. If you would prefer to disable this behaviour, you can use this function.