v4.0.0

The major modification in this release is the new scheme to set parameters of the HPDcache

Added

• Add utility macros to define the types in the interface of the HPDcache.
• Add scripts for code static check (lint)
• Add new User Guide document in reStructuredText format

Changed

• Pass configuration parameters through the top module of the HPDcache instead of
  defining them in a package. This allows different instances of the HPDcache to have
  different parameters.
• Add round-robin priority arbiter in the write-buffer to select an entry to send.
• Add fix-priority arbiter in the write-buffer to select a free entry.
• Make AXI transactions modifiable by default

Fixed

• Fix some synthesis warnings