Increase deps versions, fix marble problems
CMake min to 3.16.0 Qt min to 5.15.2 KF5 min to 5.79.0 KExiv2 min to 5.0.0 Marble min to 24.4.0 Add new rules to gitignore
CMake min to 3.16.0 Qt min to 5.15.2 KF5 min to 5.79.0 KExiv2 min to 5.0.0 Marble min to 24.4.0 Add new rules to gitignore