Make RateProfiles storable in MySQL and Postgres

data/conf/samples/rates_postgres/cgrates.json

@@ -0,0 +1,46 @@
+{
+
+"general": {
+  "node_id": "id",						
+},
+
+"logger": {
+  "level": 7
+},
+
+"db": {
+	"db_conns": {
+		"*default": {
+			"db_type": "redis",
+			"db_host": "127.0.0.1",
+			"db_port": 6379,
+			"db_name": "10",
+			"db_user": "cgrates"
+		},
+		"StorDB": {					
+			"db_type": "postgres",			
+			"db_host": "127.0.0.1",	
+			"db_port": 5432, 		
+			"db_name": "cgrates",
+			"db_user": "cgrates",
+			"db_password": "CGRateS.org"
+		}
+	},
+	"items": {
+		"*cdrs": {"limit": -1, "ttl": "", "static_ttl": false, "remote":false, "replicate":false, "dbConn": "StorDB"},
+		"*rate_profiles": {"limit": -1, "ttl": "", "static_ttl": false, "remote":false, "replicate":false, "dbConn": "StorDB"}
+	}
+},
+
+"rates": {
+  "enabled": true,
+  "prefix_indexed_fields": ["*req.Destination"],
+  "exists_indexed_fields": ["*req.Destination"],
+  "rate_prefix_indexed_fields": ["*req.Destination"]
+},
+
+"admins": {
+  "enabled": true
+}
+
+}