ANSI color control sequences should optionally be scrubbed from shell completions

[bckohan]

As of typer 0.13.1 ansi color code sequences appear in shell completions sometimes. Zshell, fish and powershell have good support for this in shell completions but bash support is shaky and the codes may render literally.

shellcompletion complete should honor the --no-color flag and this should be enabled by default in the bash installation scripts. Installation should also toggle --no-color usage on/off based on if the parameter was supplied during install.

[bckohan]

This issue might be blocked by a solution for #19