Add k6 performance tests for NCMP

This commit adds K6 tests for NCMP functionalities:
- Registration of 20000 CM-handles
- Synchronous single CM-handle passthrough read operation
- CM-handle and ID searches for no filter, module, and public property
- De-registration of 20000 CM-handles
- A mixed load test
Also includes a README and shell scripts to run all tests.

Issue-ID: CPS-2199
Signed-off-by: danielhanrahan <daniel.hanrahan@est.tech>
Change-Id: Ia2e59674057ed28f5f9ceed9465133f7c0ce8318
diff --git a/k6-tests/ncmp/1-create-cmhandles.js b/k6-tests/ncmp/1-create-cmhandles.js
new file mode 100644
index 0000000..c32cd2f
--- /dev/null
+++ b/k6-tests/ncmp/1-create-cmhandles.js
@@ -0,0 +1,56 @@
+/*
+ *  ============LICENSE_START=======================================================
+ *  Copyright (C) 2024 Nordix Foundation
+ *  ================================================================================
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ *  SPDX-License-Identifier: Apache-2.0
+ *  ============LICENSE_END=========================================================
+ */
+
+import http from 'k6/http';
+import exec from 'k6/execution';
+import { check } from 'k6';
+import { NCMP_BASE_URL, DMI_PLUGIN_URL, TOTAL_CM_HANDLES, makeBatchOfCmHandleIds } from './utils.js';
+
+const BATCH_SIZE = 100;
+export const options = {
+  vus: 1,
+  iterations: Math.ceil(TOTAL_CM_HANDLES / BATCH_SIZE),
+  thresholds: {
+    http_req_failed: ['rate == 0'],
+    http_req_duration: ['avg <= 1000'],
+  },
+};
+
+export default function() {
+    const nextBatchOfCmHandleIds = makeBatchOfCmHandleIds(BATCH_SIZE, exec.scenario.iterationInTest);
+    const payload = {
+        "dmiPlugin": DMI_PLUGIN_URL,
+        "createdCmHandles": nextBatchOfCmHandleIds.map(cmHandleId => ({
+            "cmHandle": cmHandleId,
+            "cmHandleProperties": { "neType": "RadioNode" },
+            "publicCmHandleProperties": {
+                "Color": "yellow",
+                "Size": "small",
+                "Shape": "cube"
+           }
+        })),
+    };
+    const response = http.post(NCMP_BASE_URL + '/ncmpInventory/v1/ch', JSON.stringify(payload), {
+        headers: { 'Content-Type': 'application/json' },
+    });
+    check(response, {
+        'status equals 200': (r) => r.status === 200,
+    });
+}