Rename pakrd.a to libpakrd.a

compile

@@ -74,13 +74,13 @@ done
 if [[ $BUILD_TYPE == "debug" ]]; then
 	CFLAGS+="-g "
 	PCKR_OUT="pckr"
-	PAKRD_OUT="pakrd.a"
+	PAKRD_OUT="libpakrd.a"
 else
 	mkdir dist
 	cp ./include/pak.h dist
 	CFLAGS+="-O3 "
 	PCKR_OUT="dist/pckr"
-	PAKRD_OUT="dist/pakrd.a"
+	PAKRD_OUT="dist/libpakrd.a"
 fi