Adding a dev-values.yaml for a mininet based deloyment (stratum-bmv2) also modifying some resource constraints

Change-Id: I228d536ae9d3c0033f96eb4d16c90415d9a188ea
diff --git a/sdfabric/Chart.yaml b/sdfabric/Chart.yaml
index c02128c..10c2c84 100644
--- a/sdfabric/Chart.yaml
+++ b/sdfabric/Chart.yaml
@@ -7,7 +7,7 @@
 description: A chart to deploy all SD-Fabric components
 kubeVersion: ">=1.18.0"
 type: application
-version: 1.1.2
+version: 1.2.0
 keywords:
   - aether
   - sdn