Handle Grid * expansion when size is larger than minimum, but less th…

…an sufficient to display full size (#14902) (#15653)

* Add tests for overlapping stuff, checkpoint before working out the multiple arrange stuff

* Working, just needs a lot of cleanup

* More cleanup

* Break down decompress method

* Add test for multiple Arrange calls

* More comprehensive test for multiple Arrange calls

* No longer need the Available* methods

* Pare down star decompression

* Fix empty star row/column error

* Make the grid structure methods clearer in their purpose

* Remove return from ResolveStars

* Auto-format source code

* Account for greedy control measurement behavior

* Auto-format source code

* Remove extraneous using

* Prevent unnecessary LayoutSubviews in xplat backing controls

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