[LAD] [Alphanumeric] Update views to use Request Animation Frame (RAF)

[jvigliotta]

Is your feature request related to a problem? Please describe.
Currently not many views use RAF, which can increase performance by letting the browser determine when to update the page.

Describe the solution you'd like
Any time new data is going to be updated in the template, we should have that use RAF to determine the best time to do so. LAD Tables/LAD Table Sets/Alphanumerics are prime candidates for these as they update often and are not currently utilizing this built-in feature.

Additional context
This came up during testing display layouts with MANY views (Plot, LAD, Alphanumeric, etc.) and we've determined that this could provide performance enhancements.

Testing

• this is a bit harder to test without having a reference, if able, test with and without this enhancement
• for alphanumerics, create a display layout with MANY high frequency alphanumeric telemetry objects
• for LAD tables create a lad table with MULTIPLE high frequency telemetry objects
• throttle the CPU
• watch FPS between the two versions using the same display layout
• FPS should be noticeably better on the enhanced version

[akhenry]

The Telemetry Table uses this approach and can be used as an example. One thing to note is that it's not enough just to queue a RAF callback, we also need a flag to ensure that only one RAF callback is queued at a time.

[shefalijoshi]

Verified fixed.