AthCUDACore: Fix compilation in clang build.

nvcc has problems with the tbb headers in the clang build. Restructure slightly so that we don't need direct access to TBB from cu files.

Build area was cleaned as per request posted in the DB. The full software build will be performed

This merge request affects 2 packages:

• Control/AthCUDA/AthCUDACore
• Control/AthCUDA/AthCUDAServices

Affected files list will not be printed in this case

Adding @ssnyder as watcher

added CUDA Core main review-pending-level-1 labels

CI Result SUCCESS (hash 3aac6e33)

	Athena
externals
cmake
make
tests

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Athena: number of compilation errors 0, warnings 0
For experts only: Jenkins output [CI-MERGE-REQUEST-EL9 13520] (remote access info)

MR looks fine.

Approving.

L1.

removed review-pending-level-1 label

added review-approved label

merged

mentioned in commit 163008d3