Add ability to delay futures

**Is your feature request related to a problem? Please describe.**

Currently, delay must be wired up to the widget imperatively.

**Describe the solution you'd like**

Add delay property
- If present, delays future until delay (in milliseconds) is reached.

**Describe alternatives you've considered**

N/A

**Additional context**

https://github.com/jxom/react-loads#delay
https://github.com/ghengeveld/react-async