Add neogen for annotation generation

lua/plugins/neogen.lua

@@ -0,0 +1,18 @@
+return {
+  "danymat/neogen",
+  dependencies = "nvim-treesitter/nvim-treesitter",
+  config = true,
+  -- Uncomment next line if you want to follow only stable versions
+  -- version = "*"
+  opts = {
+    snippet_engine = "luasnip",
+  },
+  keys = {
+    { "<leader>nf", "<cmd>lua require('neogen').generate()<CR>", { desc = "Generate Neogen function annotation" } },
+    {
+      "<leader>nc",
+      "<cmd>lua require('neogen').generate({ type = 'class' })<CR>",
+      { desc = "Generate Neogen class annotation" },
+    },
+  },
+}