Move VyOS charm from descriptor repo to here

Signed-off-by: Philip Joseph <philip.joseph@riftio.com>
diff --git a/builds/VyOS-proxy/layer.yaml b/builds/VyOS-proxy/layer.yaml
new file mode 100644
index 0000000..16ac9ce
--- /dev/null
+++ b/builds/VyOS-proxy/layer.yaml
@@ -0,0 +1,12 @@
+"options":
+  "basic":
+    "packages":
+    - "python-dev"
+    - "libffi-dev"
+    - "libssl-dev"
+    "use_venv": !!bool "false"
+    "include_system_packages": !!bool "false"
+  "vyos-proxy": {}
+"includes":
+- "layer:basic"
+"is": "vyos-proxy"