Refactor SYCLBIN testing to unify target modes

Suggested by @aelovikov-intel in https://github.com/intel/llvm/pull/20707#pullrequestreview-3493514286_:

Have a local format.py in SYCLBIN such that

```c++
// REQUIRES-EXEC: ...
// REQUIRES-OBJ: ...
// REQUIRES-INPUT: ...
// RUN-EXEC:
// RUN-OBJ:
// RUN-INPUT:
// RUN: %{build} ...
// RUN: %{run} ...
```

would generate three tests "on-the-fly".

This should allow the SYCLBIN tests to include `execution`, `object` and `input` testing in the same file, rather than having to split each case into separate files, despite testing the same functionality for the different target modes.