1.0.0-alpha.2

Upgrade Deps. / Rewrite as ECMA Module, small Feature changes

• full rewrite as plain esmodule
• increased NodeJS min. version (>=12.20)
• upgrade dependencies (for details see commit)
• add twig.extraLogic to be able to change twig.functions and twig.filters without full reload of gulp
  • check example in Gulpfile.js of create-page-starter
• typing fixes and optimizes
• add ampCreator additional setup param, so not always wrap is needed
  • breaking change when used wrap before, simply pass undefined as second parameter to ampCreator for upgrade
• Gulpfile.js now needs to explicitly register the tasks, see example in this repo