Feat/customization

[PLNech]

• Expose autoStop
• Expose Extension functions whenever valuable

  e.g. I felt turning isPermissionGranted(grantResult: IntArray) into IntArray.isPermissionGranted() would make sense, but only if done consistently with isRecordPermissionWithResults.
  As both Int.isRecordPermissionWithResults(grantResults: IntArray) and IntArray.isRecordPermissionWithResults(requestCode: Int) would feel weird, I stuck with staticness for both functions.

• Add @JVMOverloads when it improves Java DX

[q-litzler]

Just a tiny detail over setters return value as expression.

Thanks, reverted to block body.