PIIODevice::bytesAvailible()

fix pistringlist pibinarystream write
pibinarystream::binaryStreamSize()
PIByteArray pibinarystream read with more size fix
pistring pibinarystream read optimization
fix bug in PIIOBinaryStream read and write if failed
workaround in PIIOString::readDevice
PISPI readDevice bug Fixed

libs/main/thread/pipipelinethread.h

@@ -135,8 +135,8 @@ protected:
 	uint max_size;
 
 private:
-	void begin() {cnt = 0;}
-	void run() {
+	void begin() override {cnt = 0;}
+	void run() override {
 		mutex.lock();
 		while (in.isEmpty()) {
 			cv.wait(mutex);