[UIManager] adding too much controls in one go results in a crash

[baetz-daniel]

framework/src/Exomia.Framework/UI/UiManager.cs

Line 161 in 68f0e50

Array.Resize(ref _currentlyControls, _currentlyControls.Length * 2);

if the "_controlCount" exceeds the "_currentlyControls.Length * 2" amount the system will crash.
to prevent we should resize the array based on the maximum of "_currentlyControls.Length * 2" and "_controlCount".