Add support for detokenizing USFM

[ddaspit]

• closes Add support for manipulating USFM #153

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This change is 

[johnml1135]

src/SIL.Machine/Corpora/UsfmToken.cs line 228 at r1 (raw file):

                if (!string.IsNullOrEmpty(Data))
                {
                    if (!addSpaces && (Marker.Length == 0 || Marker[Marker.Length - 1] != '*'))

What does this do?

[johnml1135]

src/SIL.Machine/Corpora/UsfmToken.cs line 228 at r1 (raw file):

Previously, johnml1135 (John Lambert) wrote…

What does this do?

Ported updates from machine.py.

[johnml1135]

Reviewed 9 of 9 files at r1, all commit messages.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on @ddaspit)