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/utils.js b/k6-tests/ncmp/utils.js
new file mode 100644
index 0000000..3b61b21
--- /dev/null
+++ b/k6-tests/ncmp/utils.js
@@ -0,0 +1,41 @@
+/*
+ *  ============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=========================================================
+ */
+
+export const NCMP_BASE_URL = 'http://localhost:8883';
+export const DMI_PLUGIN_URL = 'http://ncmp-dmi-plugin-demo-and-csit-stub:8092';
+export const TOTAL_CM_HANDLES = 20000
+
+/*
+ * Makes a batch of CM-handle IDs.
+ * Given a batchSize=100 and batchNumber=2, it will generate ['ch-201', 'ch-202' ... 'ch-300']
+ */
+export function makeBatchOfCmHandleIds(batchSize, batchNumber) {
+    const batchOfIds = [];
+    const startIndex = 1 + batchNumber * batchSize;
+    for (let i = 0; i < batchSize; i++) {
+        let cmHandleId = 'ch-' + (startIndex + i);
+        batchOfIds.push(cmHandleId);
+    }
+    return batchOfIds;
+}
+
+export function getRandomCmHandleId() {
+    return 'ch-' + (Math.floor(Math.random() * TOTAL_CM_HANDLES) + 1);
+}