[Feature] Prefixes 2/n: Ignored glob prefixes

[olets]

Issue for documentation/findability.

• For discussion, see #114

See also

• #134
• #136

This feature is current a candidate for v6.

• There is an array of regular abbreviation "prefixes" which are globs. These are ignored when checking for regular abbreviations
• Default is an empty array
• User can customize the array

After:

# .zshrc
the_glob_prefixes_array_name_tbd=( '?.' )

% abbr b=cde
% a.b[SPACE] # expands to a.cde