Create tests for record & replay graphs mechanism

[EwanC]

Convert existing Codeplay tests for SYCL_EXT_CODEPLAY_GRAPHS to llvm-test-suite tests for testing the record & replay graph interface from the unified oneAPI graphs extension

[EwanC]

We have started looking into this and tests will be in https://github.com/Bensuo/llvm-test-suite initally

[Bensuo]

Some record and replay tests are added in this PR https://github.com/Bensuo/llvm-test-suite/pull/1though most are failing due to missing implementation obviously! Once the record and replay functionality is in place they can be finalized.