Adding unit test to ReorderAlgorithm

Adding 100 different test cases for the ReorderAlgorithm.
The test cases are randomly generated using generateRandomTestCase()
the boards are generated once and then written in the file
reorder_algorithm_test_cases. I will leave the code to generate
the boards in the Test even though is not used anymore in case
we need to generate more boards later on.

Also, I found that the ReorderAlgorithm was not deterministic,
meaning that it could generate two different results with the same
inputs (views positions and view being drag positions), because
it was traversing a map whose has was the object id which is
random. So I sort the views before traversing them.

Bug: 229292911
Test: atest ReorderAlgorithmUnitTestCase

Change-Id: I196eb8f1dafcb57d5259969268c458129ae4f46b