Font scaling is not efficient for PMV2

[JeremyKuhne]

winforms/src/System.Windows.Forms/System/Windows/Forms/Control.cs

Line 289 in 9becf03

private Dictionary<int, Font>? _dpiFonts;

We currently create copies of Fonts for every DPI for every Control when PMv2 is enabled. This is hugely inefficient as most Applications do not have a different font on every control.

This should, at a minimum, be coming from a weak referenced scaled Font cache.