Added a SampleType accessor definition to AudioBuffer

modules/juce_audio_basics/buffers/juce_AudioSampleBuffer.h

@@ -1054,6 +1054,9 @@ public:
             reverse (i, startSample, numSamples);
     }
 
+    //==============================================================================
+    /** This allows templated code that takes an AudioBuffer to access its sample type. */
+    typedef Type SampleType;
 
 private:
     //==============================================================================