ZMQ_HAVE_CURVE should be defined in MSVC build import.props files

[Allidylls]

The definitions ZMQ_HAVE_CURVE and ZMQ_USE_LIBSODIUM are used in source codes, but in MSVC build import.props files, there is just a HAVE_LIBSODIUM preprocessor definition which is not used actually. So, in all MSVC import.props files, HAVE_LIBSODIUM should be replaced with ZMQ_USE_LIBSODIUM, and ZMQ_HAVE_CURVE should be added.