LT-22182 Add "Find" to sketch and Try a Word

[AndyBlack]

This adds a Find dialog to the grammar sketch and to the various outputs of Try a Word.
This adds javascript (and a little CSS) to each web page produced by the various transforms used. The javascript and CSS code are in the new JSFunctions.xsl file.
The Find dialog is launched whenever the use keys CTL-F or right-clicks and chooses the one Find option. It allows the user to match by case and shows the number of matches. The current match is highlighted in orange; all other matches ae highlighted in yellow. It tries to center the current match in the window. It automatically wraps when the last/fist item is found and the user asks to find the next/previous match.

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This change is 

[jasonleenaylor]

@jasonleenaylor reviewed 8 of 9 files at r1, all commit messages.
Reviewable status: 8 of 9 files reviewed, all discussions resolved

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Src/Transforms/Presentation/FormatXAmpleTrace.xsl line 387 at r1 (raw file):

-->
	<xsl:template name="Script">
		<script language="JavaScript" id="clientEventHandlersJS">

Nice refactor!

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Src/LexText/ParserUI/TryAWordDlg.cs line 377 at r1 (raw file):

				findDialog.Show(this);
			}
			else if (e.KeyCode == 27)

There is an enum we should use here for readability. Keys.Escape I think.

Code quote:

27

[AndyBlack]

Thank you, Jason.
I added the enum.

[jasonleenaylor]

@jasonleenaylor reviewed 1 of 9 files at r1, 2 of 2 files at r2, all commit messages.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on @AndyBlack)