Add support for user options in ~/.config/adios2/adios2.yaml #4771

Job	Run time
git_checks	6s
format	26s
windows (win2019, shared, serial)	10m 20s
linux_ubuntu (ubuntu20.04, gcc8, shared, mpich)	20m 53s
windows (win2019, shared, ompi)	15m 33s
linux_ubuntu (ubuntu20.04, gcc9, shared, mpich)	24m 29s
CodeQL (cpp)	24m 56s
linux_ubuntu (ubuntu20.04, gcc10, shared, mpich)	23m 32s
docker (ubuntu-bionic)	8m 21s
linux_ubuntu (ubuntu20.04, gcc11, shared, mpich)	23m 19s
windows (win2022, shared, serial)	11m 29s
linux_ubuntu (ubuntu20.04, clang6, shared, mpich)	15m 8s
windows (win2022, shared, ompi)	15m 55s
linux_ubuntu (ubuntu20.04, clang10, shared, mpich)	19m 18s
macos (macos-11, shared)	29m 47s
windows (win2022, static, serial, windows-2022, vs2022)	12m 16s
linux_ubuntu (ubuntu20.04, gcc8, ompi)	42m 52s
macos (macos-12, static)	11m 57s
linux_ubuntu (ubuntu20.04, gcc8, serial)	13m 15s
linux_el8 (el8, icc, mpich)	30m 14s
macos (macos-12, shared)	6m 3s
linux_ubuntu (ubuntu20.04, clang6, ompi)	29m 5s
linux_el8 (el8, oneapi, mpich)	27m 7s
linux_ubuntu (ubuntu20.04, clang6, serial)	10m 41s
linux_ubuntu (ubuntu20.04, gcc8, static, ompi, build_only)	8m 14s
linux_ubuntu (ubuntu20.04, clang6, static, ompi, build_only)	6m 57s
linux_ubuntu (ubuntu20.04, gcc8, static, serial)	8m 50s
contract (examples)	2m 10s
contract (lammps)	4m 10s
contract (tau)	10m 50s
build_and_test	1s
	7h 48m 14s

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