Fix LT-5408: Show which parses are valid in chooser

[jtmaxwell3]

This fixes https://jira.sil.org/browse/LT-5408. It adds marks in front of analyses to indicate whether the analysis is human-approved and whether it is parser-approved.

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This change is 

[jasonleenaylor]

Src/LexText/Interlinear/ChooseAnalysisHandler.cs line 478 at r1 (raw file):

			else if (opinion == Opinions.noopinion)
			{
				// Use same foreground and background color to create a blank of the same width as a check mark.

Clever

[jasonleenaylor]

Could you add a screenshot?

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