Ignore files/folders now include wildignore option settings.

[ubaldot]

It should close #38.
It also includes changes in #41

[mmrwoods]

@Donaldttt @ubaldot FWIW I also like this idea of allowing fuzzy to respect wildignore, though I think it should be an option, disabled by default, e.g. add this to plugin/fuzzyy.vim

g:fuzzyy_respect_wildignore = exists('g:fuzzyy_respect_wildignore') ? g:fuzzyy_respect_wildignore : 0
...

# Handle wildignore option
if g:fuzzyy_respect_wildignore
    var wildignore_dir = copy(split(&wildignore, ','))->filter('v:val =~ "\*$"')
    var wildignore_files = copy(split(&wildignore, ','))->filter('v:val !~ "\*$"')
    extend(g:fuzzyy_exclude_file, wildignore_files)
    extend(g:fuzzyy_exclude_dir, wildignore_dir)
endif

It would be also necessary to document how wildignore is parsed here, with anything missing a * considered a directory, and possibly restrict it further to ensure it just works everywhere (what about ** or ? in patterns for example?)