Prepare vst3 plugin packages

Signed-off-by: Andreas Müller <schnitzeltony@gmail.com>

classes/audio-plugin-common.bbclass

@@ -5,4 +5,5 @@ PN_DSSI = "${PN}-dssi"
 PN_LADSPA = "${PN}-ladspa"
 PN_LV2 = "${PN}-lv2"
 PN_VST = "${PN}-vst"
+PN_VST3 = "${PN}-vst3"
 

classes/pack_audio_plugins.bbclass

@@ -2,9 +2,10 @@
 
 inherit audio-plugin-common
 
-PACKAGES =+ "${PN_DSSI} ${PN_LADSPA} ${PN_LV2} ${PN_VST}"
+PACKAGES =+ "${PN_DSSI} ${PN_LADSPA} ${PN_LV2} ${PN_VST} ${PN_VST3}"
 
 FILES_${PN_DSSI} += "${libdir}/dssi"
 FILES_${PN_LADSPA} += "${libdir}/ladspa"
 FILES_${PN_LV2} += "${libdir}/lv2"
 FILES_${PN_VST} += "${libdir}/vst"
+FILES_${PN_VST3} += "${libdir}/vst3"