Merge branch 'updateMetaIO'
pre-commit: Restore compatibility with macOS bash 3.2.57
ENH: Improve messages when ITKInternalEigen3 fails to configure
COMP: Fix installation of ITKInternalEigen3 with space in path
ENH: Update double-conversion import script to get latest version
Merge branch 'upstream-DoubleConversion' into updateDoubleConversion
DoubleConversion 2020-12-17 (0d3733a4)
DoubleConversion 2017-03-06 (4abe3267)