CMake 4.0 remove some deprecated code < 3.5
Catch2 old version still depend against cmake 3.0 + deprecated method.
Necessary to increase version otherwise when we try to compile
example with cmake 4.0 it will failed to configure it
Updated the version from 1.1 to 1.2
Renamed the header to "Slint Royalty-free Desktop, Mobile, and Web Applications License"
Added definition of "Mobile Application" and grant of right
Moved "Limitations" to 3rd section and "License Conditions - Attributions" to 2nd section
Added flexibility to choose between showing "MadeWithSlint" as a dialog/splash screen or on a public webpage
Moved the para on copyright notices to section under "Limitations"
... even if the old value holds the same value as the new value
This fixes test_cpp_bindings_two_way_priority_default
Also add a C++ unit test that tests the Property type specificaly
