Move VyOS charm from descriptor repo to here

Signed-off-by: Philip Joseph <philip.joseph@riftio.com>
diff --git a/builds/VyOS-proxy/requirements.txt b/builds/VyOS-proxy/requirements.txt
new file mode 100644
index 0000000..28ecaca
--- /dev/null
+++ b/builds/VyOS-proxy/requirements.txt
@@ -0,0 +1,2 @@
+flake8
+pytest