Support qcp file opening

Close #6291
(cherry picked from commit b6f678aa0fabb3e240f54457271c69c44e8ce0bd)
Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

extras/package/win32/vlc.win32.nsi.in

@@ -288,6 +288,7 @@ FunctionEnd
   !insertmacro ${_action} ".mpc"
   !insertmacro ${_action} ".oma"
   !insertmacro ${_action} ".oga"
+  !insertmacro ${_action} ".qcp"
   !insertmacro ${_action} ".rmi"
   !insertmacro ${_action} ".snd"
   !insertmacro ${_action} ".s3m"

include/vlc_interface.h

@@ -168,7 +168,7 @@ typedef enum vlc_dialog {
 
 #define EXTENSIONS_AUDIO_CSV "3ga", "a52", "aac", "ac3", "ape", "awb", "dts", "flac", "it", \
                          "m4a", "m4p", "mka", "mlp", "mod", "mp1", "mp2", "mp3",\
-                         "oga", "ogg", "oma", "s3m", "spx", "thd", "tta", \
+                         "oga", "ogg", "oma", "qcp", "rmi", "s3m", "spx", "thd", "tta", \
                          "wav", "wma", "wv", "xm"
 
 #define EXTENSIONS_VIDEO_CSV "asf", "avi", "divx", "drc", "dv", "f4v", "flv", "gxf", "iso", \
@@ -210,6 +210,7 @@ typedef enum vlc_dialog {
     "*.oga;" \
     "*.ogg;" \
     "*.oma;" \
+    "*.qcp;" \
     "*.rmi;" \
     "*.s3m;" \
     "*.spx;" \