Added the mp3 plugin linux support

plugins/mp3Decoder/Makefile

@@ -0,0 +1,9 @@
+CC=g++
+CFLAGS=-Wall
+LDFLAGS=-L../../Source -lcAudio
+
+OBJECT=main.o cMP3Decoder.o mpaudec/bits.c mpaudec/mpaudec.c
+LINK_OPTIONS=-shared -DCAUDIO_PLATFORM_LINUX
+
+all:	$(OBJECT)
+			$(CC) -o cAp_MP3Decoder.so $(OBJECT) $(LINK_OPTIONS) $(LDFLAGS)

plugins/mp3Decoder/main.cpp

@@ -1,5 +1,8 @@
 #include "../../include/cAudioDefines.h"
 #include "cMP3Plugin.h"
+#ifdef CAUDIO_PLATFORM_LINUX
+#include <cstring>
+#endif
 
 //Gives back the plugin class for cAudio to install and use.
 extern "C" CAUDIO_API IAudioPlugin* GetPluginModule(const char* version)