Code Completions

Added in all the required plugins to get code completions, snippets,
linting, and formatting working. Also configured to auto install
a LSP for any language that isn't currently installed.

nvim/dot-config/nvim/lua/plugins/none-ls.lua

@@ -0,0 +1,19 @@
+return {
+	"nvimtools/none-ls.nvim",
+	config = function()
+		local null_ls = require("null-ls")
+
+		null_ls.setup({
+			sources = {
+				null_ls.builtins.formatting.black,
+				null_ls.builtins.formatting.clang_format,
+				null_ls.builtins.formatting.gersemi,
+				null_ls.builtins.formatting.stylua,
+				null_ls.builtins.diagnostics.cpplint,
+				null_ls.builtins.diagnostics.pylint,
+			},
+		})
+
+		vim.keymap.set("n", "<leader>gf", vim.lsp.buf.format, {})
+	end,
+}