enc: java default cconfig

lua/plugins/cppcfg.lua

@@ -3,6 +3,15 @@ local M = {}
 -- local file_name_no_ext = vim.fn.expand("%:t:r")
 if pcode.active_cpp_config then
   M = {
+    {
+      "nvimtools/none-ls.nvim",
+      optional = true,
+      opts = function(_, opts)
+        local nls = require("null-ls")
+        opts.sources = opts.sources or {}
+        table.insert(opts.sources, nls.builtins.formatting.clang_format.with({ filetypes = { "cpp", "c" } }))
+      end,
+    },
     {
       "nvim-neotest/neotest",
       ft = { "cpp" },