Move all filetype specific includes to ftplugin (#208)

possibly more performant per
https://stackoverflow.com/questions/7863804/autocmd-filetype-vs-ftplugin

Author: ClashTheBunny

dotnet_mappings.vim renamed to ftplugin/cs.vim

@@ -4,3 +4,6 @@ if v:shell_error == 0
   let g:ale_fixers['python'] = ['black']
   let g:ale_python_black_auto_pipenv = 1
 endif
+map <silent> <LocalLeader>rb :wa<CR>:TestFile<CR>
+map <silent> <LocalLeader>rf :wa<CR>:TestNearest<CR>
+map <silent> <LocalLeader>rl :wa<CR>:TestLast<CR>

java_mappings.vim renamed to ftplugin/java.vim

@@ -2,3 +2,34 @@ if filereadable(expand(".rubocop.yml"))
   let g:ale_linters['ruby'] = ['rubocop']
   let g:ale_fixers['ruby'] = ['rubocop']
 endif
+function! TestContext()
+  wall
+  let [_, lnum, cnum, _] = getpos('.')
+  RubyBlockSpecParentContext
+  TestNearest
+  call cursor(lnum, cnum)
+endfunction
+
+command! TestContext :call TestContext()
+
+map <silent> <LocalLeader>rc :TestContext<CR>
+map <silent> <LocalLeader>rb :wa<CR>:TestFile<CR>
+map <silent> <LocalLeader>rf :wa<CR>:TestNearest<CR>
+map <silent> <LocalLeader>rl :wa<CR>:TestLast<CR>
+map <silent> <LocalLeader>rx :wa<CR>:VimuxCloseRunner<CR>
+map <silent> <LocalLeader>ri :wa<CR>:VimuxInspectRunner<CR>
+map <silent> <LocalLeader>rs :!ruby -c %<CR>
+map <silent> <LocalLeader>AA   :A<CR>
+map <silent> <LocalLeader>AV   :AV<CR>
+map <silent> <LocalLeader>AS   :AS<CR>
+
+" Restore vim-diff shortcuts
+silent! unmap ]c
+map <silent> ]C :RubyBlockSpecParentContext<CR>
+
+map <LocalLeader>rd Orequire "pry"; binding.pry<ESC>
+
+" Search for tag
+nmap <silent> <LocalLeader>] :Tags '<C-R><C-W> <CR>
+
+setlocal isk+=?

javascript_mappings.vim renamed to ftplugin/javascript.vim

@@ -88,12 +88,6 @@ endif
 
 autocmd FileType tex setlocal textwidth=78
 
-autocmd FileType ruby runtime ruby_mappings.vim
-autocmd FileType cs runtime dotnet_mappings.vim
-autocmd FileType javascript runtime javascript_mappings.vim
-autocmd FileType python runtime python_mappings.vim
-autocmd FileType java runtime java_mappings.vim
-
 " wstrip plugin
 " don't highlight trailing whitespace
 let g:wstrip_highlight = 0