feat: Expose list refs (#1993)

* feat: add listRefs function to retrieve git references

* test: add unit tests for listRefs function

* test: add listRefs to exports in test-exports.js

* feat: add listRefs to sidebars for documentation

* docs: add @LokiMidgard as a contributor

* refactor: remove redundant listRefs method, why did I not notice that…

* fix format

* add missing fixtuers…

* fix missing refs

Author: LokiMidgard