Create the v2009.vpi module to include SystemVerilog core
functions, and start out with some of the enum methods.
Add to vvp support for creating enum types, including some
vpi access methods.
This patch adds support for passing the delay selection to the
VPI interface. It adds a new property to both the vpi_get and
vpi_get_str calls to return the current delay selection. It also
defines three constants for minimum, typical and maximum
delay selections.
This patch makes the code generator put the compiler version
information in the vvp output file. It also adds checks in vvp
to verify that this version is compatible with the run time.
I am assuming that a base release 0.9.0, etc. will have a
blank VERSION_TAG. Any change relative to the release will have
a VERSION_TAG.