Include README and usage

Author: SapphicFire

Client-Side Components/UX Client Script Include/Reusable Debounce/README.md

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+## Add a debounce to search fields or other inputs with a client script
+Inputs, Typeaheads, and other components that can be used for searching the database, caches, or local storage. However, performing a search for every keypress or other change is often unnecessary and uses more resources than strictly necessary. This UX Client Script Include is a small utility for managing debounces, allowing a 'cool-off' from inputs before performing the activity.
+
+### Steps
+1. Create a new UX Client Script Include (`sys_ux_client_script_include`), using the script from the associated snippet
+2. Create a new Client Script in UI Builder, and add the include you created in 1 as a dependency
+3. Within the Client Script, import the Script Include as follows, replacing `global.DebounceUtilName` with the scope and UX Client Script Include name:
+    ```js
+    const DebounceUtil = imports["global.DebounceUtilName"]();
+    ```
+4. Within the Client Script, declare a `function` to be called inside the debounce function
+
+### Example usage
+```js
+/**
+* @param {params} params
+* @param {api} params.api
+* @param {any} params.event
+* @param {any} params.imports
+* @param {ApiHelpers} params.helpers
+*/
+function handler({api, event, helpers, imports}) {
+    const DebounceUtil = imports["global.DebounceUtil"]();
+    var debounceSearch = DebounceUtil.debounce(takeAction, 500, helpers);
+    debounceSearch();
+
+    function takeAction(){
+        const searchTerm = event.payload.value;
+        api.setState('fullRefQuery',`nameLIKE${searchTerm}`);
+    }
+}
+```