Diagnostic overlay dev tool

## What problem does this solve or what need does it fill?

Bevy currently has multiple diagnostics that are recorded but only the FPS is displayed as a dev tool. We should have a way to display all those diagnostics

## What solution would you like?

- Update the `FpsOverlay` to display all those diagnostics already present in bevy.
- We should probably have a simple mode and advanced mode where simple only shows FPS and advanced shows everything.
- The plugin should be renamed to something like `DiagnosticOverlay` to reflect that change.
- Eventually, it could also show pipeline statistics
- Since it will be a lot of data, the default font size should be reduced.

## What alternative(s) have you considered?

N/A

## Additional context

Any other information you would like to add such as related previous work,
screenshots, benchmarks, etc.