Tests: Add boilerplate code to support e2e tests on enterprise (#61959)

* Add e2e boilerplate for enterprise tests

* Remove enterprise symlink file

* Add tsconfig to e2e extensions folder and gitignore

* Update run-suite to use extensions folder

* Remove unnecessary tsconfig file

* Update e2e enterprise paths on gitignore

* Copy symlinked e2e enterprise files on run-suite

* Add cleanup command to run-suite

* Improve cleanup and setup for enterprise e2e tests

* Update e2e path for enterprise tests on gitignore

* Support to run different e2e tests for each license

.gitignore

@@ -157,6 +157,8 @@ compilation-stats.json
 /e2e/benchmarks/**/results/*
 /e2e/benchmarks/**/results
 /e2e/build_results.zip
+/e2e/extensions
+/e2e/extensions-suite
 
 # grafana server
 /scripts/grafana-server/server.log