Add efm-language server formatting for protobuf

.config/efm-langserver/config.yaml

@@ -0,0 +1,14 @@
+version: 2
+root-markers:
+- .git/
+
+tools:
+  clang-format: &clang-format
+    format-command: 'clang-format -style="{BasedOnStyle: Google, IndentWidth: 2, AlignConsecutiveDeclarations: true, AlignConsecutiveAssignments: true, ColumnLimit: 0}"'
+    format-stdin: true
+
+languages:
+  proto:
+    - <<: *clang-format
+
+

.config/nvim/lua/plugins.lua

@@ -236,6 +236,16 @@ return require('packer').startup(function()
     end
   }
 
+
+  use {
+    'mattn/efm-langserver',
+    config = function()
+      require "lspconfig".efm.setup {
+        init_options = {documentFormatting = true},
+      }
+    end
+  }
+
   use {
     "ray-x/go.nvim",
     config = function()