- update is_accessible implementation to use fapl and pass it down to H5Fint.c
- move is_HDF5 inside deprecated macros in H5Fpublic.h 
- move H5ES_status_t outside of H5VLpublic.h to H5ESpublic.h
- rename public properties in H5VLpublic.h to H5VL_PROP_* to add more scoping
- no need to include private if pkg is included in H5VLnative.c
- rename plist_id to lapl_id in loc_params structs