Merge pull request #85 in HDF5VOL/daos-vol from ~NFORTNE2/daos-vol:map_updates to master
* commit '66be1e2024be532f34bc9dc9626817dfc1c833eb':
Fix bug in FLOAT_EQUAL macro
Add tests for H5Mget*. Fix bug in vl tconv test.
Fix memory leaks in map test.
Add more map tests. Fix bug in H5Miterate with vl keys and vl parent type conversion. Add check for empty vl array (non string) (not supported).
Fix bug in map type conversion. More map tests.
Fix issues with VL strings for map keys. Add more map tests.
Fix bug with map type conversion with H5Miterate. Add more map tests.
