Add HIC abstraction layer for HIP and CUDA

[wdeconinck]

Currently this is implemented as a stand-alone CMake package within the atlas repository.

A dummy API is available when HIP or CUDA backend is not available, to avoid #ifdef in downstream code.

Atlas has been adapted to replace all use of CUDA API with the new hic API.
Even though hic is tested with HIP backend, the use of Atlas with hic has not been tested with the HIP backend. A future PR may address small fixes needed.

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[codecov-commenter]

Codecov Report

Attention: Patch coverage is 61.36364% with 17 lines in your changes missing coverage. Please review.

Project coverage is 79.95%. Comparing base (74baa23) to head (afd3b5f).
Report is 7 commits behind head on develop.

Files	Patch %	Lines
hic/src/hic/hic_dummy/hic_dummy_runtime.h	30.00%	7 Missing ⚠️
src/atlas/util/Allocate.cc	50.00%	4 Missing ⚠️
hic/tests/test_hic_dummy.cc	81.25%	3 Missing ⚠️
src/atlas/util/Allocate.h	50.00%	2 Missing ⚠️
hic/src/hic/hic_runtime.h	50.00%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop     #219      +/-   ##
===========================================
+ Coverage    79.40%   79.95%   +0.55%     
===========================================
  Files          794      792       -2     
  Lines        54315    62309    +7994     
===========================================
+ Hits         43131    49822    +6691     
- Misses       11184    12487    +1303     

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