[Demo] Inspector window follows more nicely on macOS

[New] Added CopyDelimiter and CopyLineBreak properties to allow customizing how cells are copied as text (default=TAB,CRLF)
[New] Added Title() method to xWindowWrapper for Xojo cross version compatibility

[All] Fix for potential exception in Draw_ResizingColumns
[All] Fix for header not scrolling horizontally properly
[All] Fix for failure to respect changed value when handling cellDidEdit.

[macOS] Setting a material on a DataView now behaves when dataview is within a container.

[Win] Improvements in how listHighlightColor is read from OS
[Win] Improvement to how dpi changes are detected
[Win] Now handles hidpi better on Windows