update recipes

recipes/wip/codecs/wavpack/recipe.toml

+#TODO Not compiled or tested
+[source]
+tar = "https://github.com/dbry/WavPack/releases/download/5.7.0/wavpack-5.7.0.tar.xz"
+[build]
+template = "configure"

recipes/wip/libs/opus/recipe.toml

 #TODO compiled but not tested
 [source]
-tar = "https://downloads.xiph.org/releases/opus/opus-1.4.tar.gz"
+tar = "https://downloads.xiph.org/releases/opus/opus-1.5.1.tar.gz"
 [build]
 template = "configure"

recipes/wip/tui/gitu/recipe.toml

+#TODO Not compiled or tested
+[source]
+git = "https://github.com/altsem/gitu"
+[build]
+template = "cargo"