Made it possible for users to override the definition of JUCE_SNAP_TO_ZERO

modules/juce_audio_basics/buffers/juce_FloatVectorOperations.h

@@ -23,10 +23,12 @@
 namespace juce
 {
 
-#if JUCE_INTEL
- #define JUCE_SNAP_TO_ZERO(n)    if (! (n < -1.0e-8f || n > 1.0e-8f)) n = 0;
-#else
- #define JUCE_SNAP_TO_ZERO(n)    ignoreUnused (n)
+#ifndef JUCE_SNAP_TO_ZERO
+ #if JUCE_INTEL
+  #define JUCE_SNAP_TO_ZERO(n)    if (! (n < -1.0e-8f || n > 1.0e-8f)) n = 0;
+ #else
+  #define JUCE_SNAP_TO_ZERO(n)    ignoreUnused (n)
+ #endif
 #endif
 class ScopedNoDenormals;