This should happen for both add_subdirectory() as well as find_package()
calls. Nothing should be included either way. The consuming project
decides, what should be included.

Move it to the user presets instead.

Replace CMAKE_CURRENT_LIST_DIR in package config file
Remove EXCLUDE_FROM_ALL from tests.
Building of tests can be controlled with the BUILD_TESTING variable.

Bump minimum required CMake version to 3.30 for package init fixes
Remove now obsolete script file

Cleanup hard-coded test configuration
Bump CMake package version number

Add project version to copyright notice install location

Use ${sourceDir} macro instead of .

Update unit tests: Target mocks use environment variables now. Real
targets don't work in script mode and normal variables are blocked by
the block() command, now.

This makes the CMake package relocatable

You can push multiple branches and tags at the same time using git push
--atomic. In this case, only master was synced, not the tags. Always run
both steps just in case.

Update README accordingly

The package config and tests take the minimum required CMake version
from the main project.

Also introduce the maximum supported CMake version for policy management.

LoadStaticSharedTargets is completely build type agnostic.

Update copyright notice

The existence check still assumed a single target.
Refactor some other parts of the macro, too.

Also bump JSON Schema version of CMakePresets.json.

You can now build and install LoadStaticSharedTargets like any CMake
library and also discover it the same way via find_package().