Adds the specified run loop to the list of run loops the receiver monitors and from which it responds to requests.
Original signature is '- (void)addRunLoop:(NSRunLoop *)runloop'
Available in Mac OS X v10.0 and later.
- runloop (NSRunLoop)
- The run loop to add to the receiver.
- Available in Monobjc Bridge: 10.6 (For Mac OS X 10.6 and later), 10.5 (For Mac OS X 10.5 and later)