RF: Enable M1 platform. Report platform as x86 ("macos-64") if a M1 build is not available for the requested FSL version

See merge request fsl/conda/installer!56

rosetta emulation is not available

tempdir, used in unit tests

not available for the requested FSL version

Rf/parse known args

See merge request fsl/conda/installer!55

Enh/override miniconda

See merge request fsl/conda/installer!54

DOC: Changelog

See merge request fsl/conda/installer!53

ENH,RF: Strip PYTHON* env vars from environment. Support different progress reporting versions

See merge request fsl/conda/installer!52

reporting versions

MNT: Add a warning to the generated condarc [skip-ci]

See merge request fsl/conda/installer!51

Mnt/condarc

See merge request fsl/conda/installer!50

MNT: Configure logging and rint log file path before creating context (and trying to download manifest)

See merge request fsl/conda/installer!49

trying to download manifest). Print exception info if manifest download fails

MNT: Revert to single-step installation method

See merge request fsl/conda/installer!48

Process.monitor_progress, as an alternative to reading #lines on
stdout. Monitor number of files in $FSLDIR/pkgs/, instead of #lines of stdout,
to report progress on main FSL installation, as mamba does not print package
download progress to stdout.