Added cURL-based CLI client script.

api/src/util/bash/client.sh

@@ -0,0 +1,22 @@
+#!/bin/bash
+
+host="${PM_API_HOST:-localhost:8080}"
+if [ $# -eq 1 ]; then
+  url="$1"
+  method="GET"
+  data=""
+elif [ $# -eq 2 ]; then
+  method="$1"
+  url="$2"
+  data=""
+else 
+  method="$1"
+  url="$2"
+  data="$3"
+fi
+
+curl -s -X "$method" \
+  -H "Content-Type: application/json" \
+  -H "Authorization: $(cat credential)"\
+  "http://${host}/api/$url" \
+  -d "$data" | jq .