feat: add some utils to read queries

lua/nvim-treesitter/lib.lua

@@ -0,0 +1,19 @@
+-- Treesitter utils
+
+local api = vim.api
+local ts = vim.treesitter
+
+local M = {}
+
+local function read_query_file(fname)
+  return table.concat(vim.fn.readfile(fname), '\n')
+end
+
+function M.get_query(ft, query_name)
+  local query_files = api.nvim_get_runtime_file(string.format('queries/%s/%s.scm', ft, query_name), false)
+  if #query_files > 0 then
+    return ts.parse_query(ft, read_query_file(query_files[1]))
+  end
+end
+
+return M