Add method to comapre KeyCombo's

Source/SRCommon.h

@@ -166,6 +166,10 @@ FOUNDATION_STATIC_INLINE KeyCombo SRMakeKeyCombo(NSInteger code, NSUInteger flag
 	return kc;
 }
 
+FOUNDATION_STATIC_INLINE BOOL SRKeyComboEqualToKeyCombo (KeyCombo keyCombo1, KeyCombo keyCombo2) {
+    return keyCombo1.code == keyCombo2.code && keyCombo1.flags == keyCombo2.flags;
+}
+
 FOUNDATION_STATIC_INLINE BOOL SRIsSpecialKey(NSInteger keyCode) {
 	return (keyCode == kSRKeysF1 || keyCode == kSRKeysF2 || keyCode == kSRKeysF3 || keyCode == kSRKeysF4 || keyCode == kSRKeysF5 || keyCode == kSRKeysF6 || keyCode == kSRKeysF7 || keyCode == kSRKeysF8 || keyCode == kSRKeysF9 || keyCode == kSRKeysF10 || keyCode == kSRKeysF11 || keyCode == kSRKeysF12 || keyCode == kSRKeysF13 || keyCode == kSRKeysF14 || keyCode == kSRKeysF15 || keyCode == kSRKeysF16 || keyCode == kSRKeysSpace || keyCode == kSRKeysDeleteLeft || keyCode == kSRKeysDeleteRight || keyCode == kSRKeysPadClear || keyCode == kSRKeysLeftArrow || keyCode == kSRKeysRightArrow || keyCode == kSRKeysUpArrow || keyCode == kSRKeysDownArrow || keyCode == kSRKeysSoutheastArrow || keyCode == kSRKeysNorthwestArrow || keyCode == kSRKeysEscape || keyCode == kSRKeysPageDown || keyCode == kSRKeysPageUp || keyCode == kSRKeysReturnR2L || keyCode == kSRKeysReturn || keyCode == kSRKeysTabRight || keyCode == kSRKeysHelp);
 }