Add signature to libmedia.so.

Also remove superflous data from libpackage.rdef

This should fix #15958

Change-Id: I76991030541dca12a2dfdd9282f02274a461ed2a
Reviewed-on: https://review.haiku-os.org/c/haiku/+/2561
Reviewed-by: Adrien Destugues <[email protected]>

src/kits/media/Jamfile

@@ -1,5 +1,7 @@
 SubDir HAIKU_TOP src kits media ;
 
+AddResources libmedia.so : libmedia.rdef ;
+
 UsePrivateHeaders app media shared ;
 UsePrivateHeaders [ FDirName media experimental ] ;
 

src/kits/media/libmedia.rdef

@@ -0,0 +1 @@
+resource app_signature "application/x-vnd.Haiku-libmedia";

src/kits/package/libpackage.rdef

@@ -1,11 +1 @@
-resource app_signature "application/x-vnd.Haiku-libpackage" ;
-
-resource app_version {
-	major = 1,
-	middle = 0,
-	minor = 0,
-	variety = 0,
-	internal = 0,
-	short_info = "1.0.0",
-	long_info = "Haiku libpackage."
-};
+resource app_signature "application/x-vnd.Haiku-libpackage";