LT-22517: Word Export: Add between text to variant types

[mark-sil]

This change is 

[github-actions]

NUnit Tests

    1 files  ±0      1 suites  ±0   10m 38s ⏱️ - 1m 0s
4 209 tests +3  4 139 ✅ +3  70 💤 ±0  0 ❌ ±0 
4 218 runs  +3  4 148 ✅ +3  70 💤 ±0  0 ❌ ±0 

Results for commit 1c5d86c. ± Comparison against base commit dc4ed22.

This pull request removes 2 and adds 5 tests. Note that renamed tests count towards both.

SIL.FieldWorks.XWorks.LcmWordGeneratorTests ‑ GenerateBeforeBetweenAfterContent
SIL.FieldWorks.XWorks.LcmWordGeneratorTests ‑ GenerateBeforeBetweenAfterContentWithWSAbbreviation

SIL.FieldWorks.XWorks.LcmWordGeneratorTests ‑ BeforeBetweenAfterContent
SIL.FieldWorks.XWorks.LcmWordGeneratorTests ‑ BeforeBetweenAfterContentWithWSAbbreviation
SIL.FieldWorks.XWorks.LcmWordGeneratorTests ‑ BeforeContentSuppressedOnSubsequentVariantTypeGroupsWhenBetweenPresent
SIL.FieldWorks.XWorks.LcmWordGeneratorTests ‑ BetweenContentAbsentForSingleVariantTypeGroup
SIL.FieldWorks.XWorks.LcmWordGeneratorTests ‑ BetweenContentOnceForMultipleVariantTypesGroups

♻️ This comment has been updated with latest results.

[github-actions]

Render comparison artifacts

Render snapshot failures were reported in b3352bbd34c8 run 26586560583.1, but the latest run b3352bbd34c8 run 26586560583.2 is clean.

This comment will be replaced if a future run produces render snapshot failures again.

[jasonleenaylor]

@jasonleenaylor reviewed 6 files and all commit messages, and made 3 comments.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on mark-sil).

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Src/xWorks/ConfiguredLcmGenerator.cs line 1744 at r1 (raw file):

				typeNode = null;
			// Generate XHTML by Type
			bool outerFirst = true;

firstType

Code quote:

outerFirst

---

Src/xWorks/ConfiguredLcmGenerator.cs line 1748 at r1 (raw file):

			{
				var combinedContent = settings.ContentGenerator.CreateFragment();
				bool innerFirst = true;

firstRef

Code quote:

innerFirst