When back annotating from a SDF file we already ignore timing checks so
we may as well ignore the COND statement that can be used with them.
Also update a few other changes from development.
This patch adds support for the other edges 01, 10, etc. These still
need to be verified in the context of IOPATHs, but they are ignored
in the timing checks and that's what was needed.
Parse SDF file annotations of edge sensitive delay paths.
Add vpi support for getting the specified edge sensitivity of
an edge sensitive path, and annotate paths with proper attention
to the edge that is specified for the path.
Cary R
Larry Doolittle
Stephen Williams