Fix LineSegmentize where number of linestrings is less than n

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The bug: LineStringSegmentize trait can return n - 1 LineStrings. This happens when the last Line being iterated over needs to be split into 2 separate Lines.

The fix: previously, the definition did not permit splitting the last Line iterator. This PR allows the last Line to be split and checks after the for loop has completed iteration if the length is equal to n.

Closes: https://github.com/georust/geo/issues/1075

georust / geo

Fix LineSegmentize where number of linestrings is less than n #1077

[x] I added an entry to `CHANGES.md` if knowledge of this change could be valuable to users.

georust / geo

Fix LineSegmentize where number of linestrings is less than n #1077

[x] I added an entry to CHANGES.md if knowledge of this change could be valuable to users.

[x] I added an entry to `CHANGES.md` if knowledge of this change could be valuable to users.