Added config and plugins for rust dev

lua/custom/plugins/rust-tools.lua

@@ -0,0 +1,13 @@
+return {
+	{
+		"simrat39/rust-tools.nvim",
+		dependencies = {
+			'neovim/nvim-lspconfig',
+			'nvim-lua/plenary.nvim',
+			'mfussenegger/nvim-dap',
+		},
+		opts = function(_, _)
+			require("rust-tools").setup({})
+		end,
+	},
+}