Feature request: `time` support

[rakshith-ravi]

Is your feature request related to a problem? Please describe.
Please add support for the time crate

Describe the solution you'd like
Ideally, a time-impl where structs from the time crate are implemented would be ideal

[NyxCode]

I think this would require the same machinery as #470 to detect whether the serde-human-readable cargo feature is enabled.