Update local LV2 libraries to latest versions

lilv-0.24.6
   lv2-1.16.0
   serd-0.30.2
   sord-0.16.4
   sratom-0.6.4
   suil-0.10.6

lib-src/lv2/serd/waflib/extras/gob2.py

@@ -0,0 +1,17 @@
+#!/usr/bin/env python
+# encoding: utf-8
+# Ali Sabil, 2007
+
+from waflib import TaskGen
+
+TaskGen.declare_chain(
+	name = 'gob2',
+	rule = '${GOB2} -o ${TGT[0].bld_dir()} ${GOB2FLAGS} ${SRC}',
+	ext_in = '.gob',
+	ext_out = '.c'
+)
+
+def configure(conf):
+	conf.find_program('gob2', var='GOB2')
+	conf.env['GOB2FLAGS'] = ''
+