Move most of the code into two new files:
- QtBuildRepoHelpers.cmake
- QtBuildRepoExamplesHelpers.cmake
Task-number: QTBUG-86035
Change-Id: I48c4e7c64f0ffb600118172b8e69b26018f36ffb
Reviewed-by: Alexey Edelev <alexey.edelev@qt.io>
(cherry picked from commit 720b8ee6732f6fc8df5fb7133b569851356641b7)