remove boost::aligned_alloc

[psychocoderHPC]

based on the suggestions from #481 (comment) and #481 (comment)

• remove dependency to boost aligned allocation

• remove boost in filenames which was providing aligned memory via boost
  implementations

• add AlignedAlloc.hpp

• need tests on OpenPower system

[psychocoderHPC]

@BenjaminW3 could you please check on your windows system if our BOOST_COMP_MSVC is working correctly.
Somehow the wrong code path on some windows tests with nvcc was passed https://github.com/alpaka-group/alpaka/pull/1094/checks?check_run_id=893689157#step:3:3240

[psychocoderHPC]

@BenjaminW3 could you please check on your windows system if our BOOST_COMP_MSVC is working correctly.
Somehow the wrong code path on some windows tests with nvcc was passed https://github.com/alpaka-group/alpaka/pull/1094/checks?check_run_id=893689157#step:3:3240

I think I need to check for windows instead of msvc because nvcc is not msvc ^^. Is there a boost define for windows or do I need to use the define WIN32?

[BenjaminW3]

We often use BOOST_COMP_MSVC || defined(BOOST_COMP_MSVC_EMULATED). This may help.

[psychocoderHPC]

for OSX we need to use posix_memalign https://stackoverflow.com/a/22876707

[psychocoderHPC]

todo: for aligned_alloc we need to round the size to a multiple of the alignment https://en.cppreference.com/w/c/memory/aligned_alloc

[psychocoderHPC]

We often use BOOST_COMP_MSVC || defined(BOOST_COMP_MSVC_EMULATED). This may help.

thx, I found that there is a BOOST_OS_WINDOWS which will be the better way and for OSX BOOST_OS_MACOS

[psychocoderHPC]

IMO it can be merged. all failing ci build run into download issues.

[psychocoderHPC]

I found here in PIConGPU that this PR is not working on systems with a very old glibc.
The system is a ubuntu 12.04. I do not see it as a problem but we should be aware of this behaviour.
The error will be:

alpaka/core/AlignedAlloc.hpp(40): error #282: the global scope has no "aligned_alloc"