[SYCL] Initial implementation of dynamic linking support in runtime

[sergey-semenov]

This patch provides an initial implementation for supporting the dynamic linking feature. Current known limitations are: lack of kernel bundle and AOT support.

[sergey-semenov]

Moved with no changes.

[sergey-semenov]

Test failure is unrelated, should be fixed by #14589

[sergey-semenov]

@cperkinsintel gentle ping

[cperkinsintel]

small ask on the unit test, but LGTM

[sarnex]

@sergey-semenov Seeing some postcommit failures:

https://github.com/intel/llvm/actions/runs/10057852217/job/27802313127

********************
Timed Out Tests (1):
  SYCL :: KernelAndProgram/test_cache_jit_aot.cpp

and

https://github.com/intel/llvm/actions/runs/10057852217/job/27799693475

 /__w/llvm/llvm/src/sycl/unittests/program_manager/DynamicLinking.cpp:67:20: error: moving a temporary object prevents copy elision [-Werror,-Wpessimizing-move]
   67 |                    std::move(createPropertySet(ExportedSymbols)));
      |                    ^
/__w/llvm/llvm/src/sycl/unittests/program_manager/DynamicLinking.cpp:67:20: note: remove std::move call here
   67 |                    std::move(createPropertySet(ExportedSymbols)));
      |                    ^~~~~~~~~~                                  ~
/__w/llvm/llvm/src/sycl/unittests/program_manager/DynamicLinking.cpp:70:20: error: moving a temporary object prevents copy elision [-Werror,-Wpessimizing-move]
   70 |                    std::move(createPropertySet(ImportedSymbols)));
      |                    ^
/__w/llvm/llvm/src/sycl/unittests/program_manager/DynamicLinking.cpp:70:20: note: remove std::move call here
   70 |                    std::move(createPropertySet(ImportedSymbols)));
      |                    ^~~~~~~~~~                                  ~

[sergey-semenov]

Opened #14718 to address the warning

[sergey-semenov]

The timeout appears to be flaky, couldn't reproduce it so far and the next post-commit passed.