Make CL_CONFORMANCE_RESULTS_FILENAME Bazel-aware

Make CL_CONFORMANCE_RESULTS_FILENAME Bazel-aware (#2629)

Bazel requires that test outputs are put in a specific directory given
by $TEST_UNDECLARED_OUTPUTS_DIR when running a test through Bazel test

This patch checks for the environment variable $BAZEL_TEST, which Bazel
sets when running tests, and prepends the specified directory to the
user-provided path.

The behaviour when running outside of a bazel test environment is
unchanged

v2025-04-14-00 Require C++17

Require C++17 (#2356)

This enables many useful newer C++ features. C++17 is already required
by many components of the Khronos ecosystem.

Signed-off-by: Kevin Petit <kevin.petit@arm.com>

v2025-01-22-00: bruteforce: Update ULP for half-precision divide to 1.0f

bruteforce: Update ULP for half-precision divide to 1.0f (#2214)

CTS test update to match proposed spec update
https://github.com/KhronosGroup/OpenCL-Docs/issues/1278

v2024-08-08-00: Fix error return and TEST_PASS for negative SVM tests (#2027)

Fix error return and TEST_PASS for negative SVM tests
Fix review comments from #1802 

Fixes #1964

v2021-03-25-00

Improve consistency of clEnqueueWriteBuffer operations (#1195)

Reduce differences between tests by ensuring all these operations are
non-blocking.

Signed-off-by: Marco Antognini <marco.antognini@arm.com>