Always make :Build/:BuildDir available

Don't attached this functionality to only c/cpp filetypes.

after/ftplugin/c.lua

@@ -1 +0,0 @@
-require('build').create_commands()

after/ftplugin/cpp.lua

@@ -1,4 +1,2 @@
 vim.opt.commentstring = '//%s'
 vim.opt.matchpairs:append('<:>')
-
-require('build').create_commands()

lua/build.lua

@@ -151,22 +151,20 @@ function build.list_targets()
   return targets
 end
 
-function build.create_commands()
+local buffer = vim.api.nvim_get_current_buf()
-  local buffer = vim.api.nvim_get_current_buf()
 
-  -- Create :BuildDir command
+-- Create :BuildDir command
-  vim.api.nvim_buf_create_user_command(buffer, 'BuildDir', function(opts)
+vim.api.nvim_buf_create_user_command(buffer, 'BuildDir', function(opts)
   build.set_dir(opts.fargs[1])
-  end, {
+end, {
   bang = true, nargs = '?', complete = build.list_dirs,
-  })
+})
 
-  -- Create :Build command
+-- Create :Build command
-  vim.api.nvim_buf_create_user_command(buffer, 'Build', function(opts)
+vim.api.nvim_buf_create_user_command(buffer, 'Build', function(opts)
   build.run(opts.fargs)
-  end, {
+end, {
   bang = true, nargs = '*', complete = build.list_targets,
-  })
+})
-end
 
 return build