hdf5_ep

Merge pull request #1307 in HDFFV/hdf5 from ~BYRN/hdf5_adb:hdf5_1_10 to hdf5_1_10

* commit '81b2943b6fc01b52de2048d9503d524b2780112b':
  Fix typo in whitespace area
  Merge CMake changes from develop Improved cross-compiling and toolchains