Add missing files

lua/lsp/metals.lua

@@ -0,0 +1,19 @@
+local status, metals = pcall(require, "metals")
+if (not status) then return function() end end
+
+return function(on_attach)
+    metals_config = metals.bare_config()
+    metals_config.init_options.statusBarProvider = "on"
+    metals_config.settings = { showImplicitArguments = true }
+    metals_config.on_attach = on_attach
+    metals_config.capabilities = require("cmp_nvim_lsp").default_capabilities()
+
+
+    vim.cmd [[augroup lsp]]
+    vim.cmd [[au!]]
+    vim.cmd([[autocmd FileType scala setlocal omnifunc=v:lua.vim.lsp.omnifunc]])
+    vim.cmd [[au FileType scala,sbt lua require("metals").initialize_or_attach(metals_config)]]
+    vim.cmd [[augroup end]]
+
+    return metals_config
+end