[SYCL] Speed up atomic_ref tests

[vladimirlaz]

The full test coverage of sycl::atomic_ref functionality is reached in SYCL-CTS tests. Limiting tests to speed up test execution (600+ seconds to 30- seconds):

• single build per test is done having all test cases;
• limiting type coverage to float to use native float atomics (to caver native fp atomics if available) and int (for and, or, xor operation which does not support floating point operation);
• guard deprecated API (::sycl::ext::oneapi::atomic_ref) with RUN_DEPRECATED and removed from default execution;
• guard full type coverage with FULL_ATOMIC32_COVERAGE and FULL_ATOMIC64_COVERAGE macros;
• fixed atomic_memory_scope_capabilities checks.

[t4c1]

Is reducing the test coverage to a single type per operation necessary to reach the required testing time? If it is, it might make sense to put tests for other types behind a macro like you did with deprecated tests from ext namespace.

[t4c1]

LGTM

[vladimirlaz]

@sergey-semenov could you please have a look/approve?

[vladimirlaz]

@yanfeng3721 could you please have a look?

[yanfeng3721]

@yanfeng3721 could you please have a look?

LGTM.