Drobnyd human friendlier format

[PragTob]

This is #373 - as I didn't take care of it for too long/forever I'm integrating it myself and polishing it up.

• [x] Implement it for the other units where suitable as well
• [x] see if we can make the units() or something nicer

Follow ups:

• [ ] make 0 format to "0 s" aka a destined better "human" base unit
• [ ] see about removing the space so "3h" instead of "3 h", ref: https://github.com/bencheeorg/benchee/pull/373#issuecomment-1353893220

[PragTob]

@drobnyd thanks for all the work, it's now merged and will hopefully release soon :)

[eksperimental]

Awesome. Thank you. and beautiful bunny