Add the SPMediaKeyTap thirdparty lib.

thirdparty/SPMediaKeyTap/SPInvocationGrabbing/NSObject+SPInvocationGrabbing.h

@@ -0,0 +1,30 @@
+#import <Foundation/Foundation.h>
+
+@interface SPInvocationGrabber : NSObject {
+    id _object;
+    NSInvocation *_invocation;
+    int frameCount;
+    char **frameStrings;
+    BOOL backgroundAfterForward;
+    BOOL onMainAfterForward;
+    BOOL waitUntilDone;
+}
+-(id)initWithObject:(id)obj;
+-(id)initWithObject:(id)obj stacktraceSaving:(BOOL)saveStack;
+@property (readonly, retain, nonatomic) id object;
+@property (readonly, retain, nonatomic) NSInvocation *invocation;
+@property BOOL backgroundAfterForward;
+@property BOOL onMainAfterForward;
+@property BOOL waitUntilDone;
+-(void)invoke; // will release object and invocation
+-(void)printBacktrace;
+-(void)saveBacktrace;
+@end
+
+@interface NSObject (SPInvocationGrabbing)
+-(id)grab;
+-(id)invokeAfter:(NSTimeInterval)delta;
+-(id)nextRunloop;
+-(id)inBackground;
+-(id)onMainAsync:(BOOL)async;
+@end