Optimised the base class implementation of InputStream::skipNextBytes() a bit

modules/juce_core/streams/juce_InputStream.cpp

@@ -218,6 +218,10 @@ void InputStream::skipNextBytes (int64 numBytesToSkip)
 {
     if (numBytesToSkip > 0)
     {
+        // try to just set the position first as this will be much faster than reading each byte
+        if (setPosition (getPosition() + numBytesToSkip))
+            return;
+
         auto skipBufferSize = (int) jmin (numBytesToSkip, (int64) 16384);
         HeapBlock<char> temp (skipBufferSize);