pmem2: add pmem2_future

src/Makefile

src/PMDK.sln

src/include/libpmem2.h

src/include/libpmem2/async.h

src/include/libpmem2/base.h

src/libpmem2/libpmem2.vcxproj

src/libpmem2/libpmem2.vcxproj.filters

src/libpmem2/map_posix.c

src/libpmem2/mover.c

src/test/Makefile

src/test/Makefile.inc

src/test/pmem2_future/.gitignore

src/test/pmem2_future/Makefile

src/test/pmem2_future/TESTS.py

src/test/pmem2_future/pmem2_future.c

src/test/pmem2_future/pmem2_future.vcxproj

src/test/pmem2_future/pmem2_future.vcxproj.filters

src/test/pmem2_granularity/pmem2_granularity.vcxproj

src/test/pmem2_map/pmem2_map.vcxproj

...t/pmem2_map_from_existing/pmem2_map_from_existing.vcxproj