[Request] Proposal: stt

`stt` is a program that takes a sentence, removes the white spaces in it, and put a white space with a random span into the string repeatedly until the string ends. For example:
```
$ ./stt <<< "stt is a program."
st tis apro g ram.
```
Also, it would be nice for the program to have a minimum and maximum span.

Note. `stt` is the abbreviation of the English word 'stutter'.