* dff_external_integration_skill first commit

* added yml files; added formatter

* draft of external integration skill

* fake external server

* server filez

* wip

* working version of fake server/skill; tests

* text fix

* update ymls and fix some bugs

* change port

* style

* revert unnecessary changes

* update acc to review

* ports and comments n2

* fixes

* style

* style

* formatter

* external service timeout

* revert accidential change

* fixes for Dilya

* flake8 fix!

* fix old port in readme

* fix: llms output postprocessing

* fix: llms output postprocessing

* fix: tests for llms