Integrate oneDPL extension tests into test framework

[timmiesmith]

The tests for the by_segment and multi-value binary search algorithms need to be refactored to use the test framework used by the rest of the pstl algorithms. Specific issues to be addressed by this include

• Updating USM tests to use std::vector<usm::alloc> instead of raw allocations.
• Using invoke_on_all_hetero_policies and the approach from test1buffer, test2buffers, etc. as is done for other tests

[timmiesmith]

#386 and #247 update most of the tests. #380 will update reduce_by_segment tests to complete work on this issue.