* A lot of new checks are added to WishboneCheckerE unit
  trying to implement the rules of the Wishbone spec.
* An illegal use of the suffix implication instead of logical
  implicationis fixed in WishboneMasterE unit

* Add 1st initial version of WishBone checker unit
* Add Wishbone package with component & type declarations
* Replace WB slave register by dictionary

WB_WRITE & WB_READ check that a write/read transfer is started on the
WishBone bus if requested on the local port of the WishBoneMasterE unit
at the adequate time.