Function throttle

throttle(
    callback: (
        elapsedMs: number,
        ...args: readonly unknown[],
    ) => void | Promise<unknown>,
    intervalMinMs: number,
): (...args: unknown[]) => Promise<void>
Throttles a function. Callback only allowed to run after minimum of intervalMinMs.
Parameters
- callback: (elapsedMs: number, ...args: readonly unknown[]) => void | Promise<unknown>
- intervalMinMs: number
Returns (...args: unknown[]) => Promise<void>
Example: Only handle move event every 500ms
```
const moveThrottled = throttle( (elapsedMs, args) => {
 // Handle ar
}, 500);
el.addEventListener(`pointermove`, moveThrottled)
```
Note that throttle does not schedule invocations, but rather acts as a filter that sometimes allows follow-through to callback, sometimes not. There is an expectation then that the return function from throttle is repeatedly called, such as the case for handling a stream of data/events.
Example: Manual trigger
```
// Set up once
const t = throttle( (elapsedMs, args) => { ... }, 5000);

// Later, trigger throttle. Sometimes the callback will run,
// with data passed in to args[0]
t(data);
```