hdf5_ep

Merge pull request #805 in HDFFV/hdf5 from ~BRTNFLD/hdf5_msb:hdf5_1_10 to hdf5_1_10

* commit '8d462d5102295359090297c707a20eaaf76ec965': (34 commits)
  Update macros
  Changed casts to const void *
  Casted pointers to void to quiet warnings on Linux.
  Added CHECK_PTR_EQ macro to testhdf5 to quiet cast warnings on Windows.
  Fixed misc Warnings flagged by VS2017.
  Made a dcpl layout struct in H5Z.c dynamic to quiet a stack size warning.
  Fixed an uninitialized filter callback struct in H5Dchunk.c and unified the naming and initialization of said struct throughout the library. This was causing a crash on VS2015 in debug mode when the debug heap complained. Fixes HDFFV-10330.
  Fixed Windows code in H5PLpath.c
  Brings H5Z and H5PL packages in sync with VOL integration branch.
  HDFFV-10328 - fix typos
  HDFFV-10328 remove allocation note
  HDFFV-10328 - remove allocation changes
  Fix typo
  HDFFV-10328 merge allocation changes from 1.8
  Fix some of the whitespace
  Add note for plugins
  Correct linkage of filters and other libs
  Changed ar to always use -cr instead of the autotools default of cru.
  Minor warning fixes
  Moved code from H5O.c to H5Oint.c
  ...