* [SC2196] Use grep -Eegrep is non-standard and deprecated.
* [SC2086] Double quoting
Double quote to prevent globbing and word splitting.
* [SC2059] printf syntax
Don't use variables in the printf format string.
Use printf "..%s.." "$foo".
Update matching test to not assume whitespace is <space>
* [SC2002] Useless cat.
Consider 'cmd < file | ..' or 'cmd file | ..' instead.
* Update Unicode PASS/FAIL output
- [x] NEW variables for 'checkmark' and 'fancy x' and tput colours
- [x] eg: `checkmark` = `\342\234\223`
- [x] eg: `PASS=${txtbold}${txtgreen}${checkmark}${txtreset}`
- [x] update `printf` statements to use `%b` for unicode variables.
- [x] Using readonly variables for
- [x] $BINARY_NAME and $VERSION
- [x] $PASS and $FAIL
- [x] refactor `.hasrc` file reading
- [x] [SC2002] Useless cat
- [x] Add new BATS tests for Unicode output
* Repo scaffolding - shellscript filetype
- [x] Add shellscripts to `.editorconfig`
- [x] Add shellscripts to `.gitattributes`
* Refactored tests to use consistent unicode glyphs.
