feat: add nvim-dap-ui extension (#711)

* Extension for nvim-dap-ui

* Add nvim-dap-ui extension to README.md

* sort

* Set file_status option to false

README.md

@@ -756,8 +756,9 @@ extensions = {'quickfix'}
 - fugitive
 - fzf
 - man
-- nerdtree
 - neo-tree
+- nerdtree
+- nvim-dap-ui 
 - nvim-tree
 - quickfix
 - symbols-outline

lua/lualine/extensions/nvim-dap-ui.lua

@@ -0,0 +1,13 @@
+-- MIT license, see LICENSE for more details.
+-- Extension for nvim-dap-ui
+local M = {}
+
+M.sections = {
+    lualine_a = { { 'filename', file_status = false } }
+}
+
+M.filetypes = {
+  "dap-repl", "dapui_console", "dapui_watches", "dapui_stacks", "dapui_breakpoints", "dapui_scopes"
+}
+
+return M