Add g:OmniSharp_fold_kinds variable

Author: nickspoons

autoload/OmniSharp/actions/fold.vim

@@ -22,7 +22,8 @@ function! s:FindBlocks(codeElements) abort
   if type(a:codeElements) != type([]) | return [] | endif
   let ranges = []
   for element in a:codeElements
-    if get(element, 'Kind', '') !=# 'namespace'
+    if len(g:OmniSharp_fold_kinds) == 0 ||
+    \ index(g:OmniSharp_fold_kinds, get(element, 'Kind', '')) >= 0
       if has_key(element, 'Ranges') && has_key(element.Ranges, 'full')
         let full = element.Ranges.full
         let start = get(get(full, 'Start', {}), 'Line', 0)

plugin/OmniSharp.vim

@@ -14,6 +14,7 @@ let g:OmniSharp_start_server = get(g:, 'OmniSharp_start_server', 1)
 let g:OmniSharp_start_without_solution = get(g:, 'OmniSharp_start_without_solution', 1)
 
 let g:OmniSharp_complete_documentation = get(g:, 'OmniSharp_complete_documentation', get(g:, 'omnicomplete_fetch_full_documentation', 1))
+let g:OmniSharp_fold_kinds = get(g:, 'OmniSharp_fold_kinds', [])
 let g:OmniSharp_loglevel = get(g:, 'OmniSharp_loglevel', g:OmniSharp_server_stdio ? 'info' : 'warning')
 let g:OmniSharp_lookup_metadata = get(g:, 'OmniSharp_lookup_metadata', 1)
 let g:OmniSharp_open_quickfix = get(g:, 'OmniSharp_open_quickfix', 1)