Add zig support, closes #405

autoload/zig/config.vim

@@ -0,0 +1,43 @@
+if exists('g:polyglot_disabled') && index(g:polyglot_disabled, 'zig') != -1
+  finish
+endif
+
+function! zig#config#ListTypeCommands() abort
+  return get(g:, 'zig_list_type_commands', {})
+endfunction
+
+function! zig#config#ListType() abort
+  return get(g:, 'zig_list_type', '')
+endfunction
+
+function! zig#config#ListAutoclose() abort
+  return get(g:, 'zig_list_autoclose', 1)
+endfunction
+
+function! zig#config#ListHeight() abort
+  return get(g:, "zig_list_height", 0)
+endfunction
+
+function! zig#config#FmtAutosave() abort
+  return get(g:, "zig_fmt_autosave", 0)
+endfunction
+
+function! zig#config#SetFmtAutosave(value) abort
+  let g:zig_fmt_autosave = a:value
+endfunction
+
+function! zig#config#FmtCommand() abort
+  return get(g:, "zig_fmt_command", ['zig', 'fmt', '--color', 'off'])
+endfunction
+
+function! zig#config#FmtFailSilently() abort
+  return get(g:, "zig_fmt_fail_silently", 0)
+endfunction
+
+function! zig#config#FmtExperimental() abort
+  return get(g:, "zig_fmt_experimental", 0)
+endfunction
+
+function! zig#config#Debug() abort
+  return get(g:, 'zig_debug', [])
+endfunction