Bug 49 : Update vpr-router charm to support workload state

Signed-off-by: Philip Joseph <philip.joseph@riftio.com>
diff --git a/vpe-router/layer.yaml b/vpe-router/layer.yaml
index 524a4f4..32e2c4f 100644
--- a/vpe-router/layer.yaml
+++ b/vpe-router/layer.yaml
@@ -1 +1,12 @@
-includes: ['layer:basic']
+"options":
+  "basic":
+    "packages":
+    - "python-dev"
+    - "libffi-dev"
+    - "libssl-dev"
+    "use_venv": !!bool "false"
+    "include_system_packages": !!bool "false"
+  "vpe-router": {}
+"includes":
+- "layer:basic"
+"is": "vpe-router"