Added Pin Manager

wled00/fcn_declare.h

@@ -147,6 +147,22 @@ void setCronixie();
 void _overlayCronixie();    
 void _drawOverlayCronixie();
 
+//pin_manager.cpp
+class PinManagerClass {
+  private:
+  #ifdef ESP8266
+  uint8_t pinAlloc[3] = {0x00, 0x00, 0x00}; //24bit, 1 bit per pin, we use first 17bits
+  #else
+  uint8_t pinAlloc[5] = {0x00, 0x00, 0x00, 0x00, 0x00}; //40bit, 1 bit per pin, we use all bits
+  #endif
+
+  public:
+  void deallocatePin(byte gpio);
+  bool allocatePin(byte gpio, bool output = true);
+  bool isPinAllocated(byte gpio);
+  bool isPinOk(byte gpio, bool output = true);
+};
+
 //playlist.cpp
 void loadPlaylist(JsonObject playlistObject);
 void handlePlaylist();