contribs: Add medialibrary

The package is disabled by default for now, as macos build isn't fixed

contribs/src/medialibrary/rules.mak

+MEDIALIBRARY_VERSION := master
+MEDIALIBRARY_URL := https://code.videolan.org/videolan/medialibrary.git
+
+#PKGS += medialibrary
+ifeq ($(call need_pkg,"medialibrary"),)
+PKGS_FOUND += medialibrary
+endif
+
+DEPS_medialibrary += vlc jpegturbo sqlite
+
+$(TARBALLS)/medialibrary-$(MEDIALIBRARY_VERSION).tar.xz:
+	$(call download_git,$(MEDIALIBRARY_URL),,$(MEDIALIBRARY_VERSION))
+
+medialibrary: medialibrary-$(MEDIALIBRARY_VERSION).tar.xz
+	$(UNPACK)
+	$(MOVE)
+
+.medialibrary: medialibrary
+	cd $< && ./bootstrap
+	cd $< && $(HOSTVARS) ./configure $(HOSTCONF)
+	cd $< && $(MAKE) install
+	touch $@