[Ide] FontChooserPanel using Buttons instead of ListView with ComboBoxes
[IDE] Removed "Editor(TooltipSource)" font and Tooltips content use "Editor" font
"Editor(TooltipSource)" was used for header of Tooltips so now I just scale it with 1.1.
I noticed that rest of content(summary, params...) do not reflect any font change.
I decided to set "Editor" font since it seems logical to me to be same as rest
of text inside editor.
[IDE] Removed "Editor(Gutter)" using "Editor" instead. Changed few fonts DisplayNames
[SourceEditor] Removed custom fonts
Bubbles fonts are now "Pad" so defaults are same as before except on non-OSX Counter and Tooltip are now Bold(before only OSX had this bold)
LanguageTooltips is now "Pad" so default is same as before
Merge remote-tracking branch 'upstream/newFonts'

Conflicts:
	main/src/core/MonoDevelop.Ide/MonoDevelop.Ide.CodeCompletion/TooltipInformationWindow.cs