Changes since 0.8.2

Added

• axi_test: Constrained randomizing AXI master (rand_axi_master) and slave (rand_axi_slave).
  • rand_axi_master issues a configurable number of read and write transactions to configurable
    memory regions (address ranges with associated memory types) and with random properties within
    constraints (e.g., burst length, exclusive accesses, atomic operations).
  • rand_axi_slave responds to transactions with random delays and data.
• axi_pkg: AXI memory types (mem_type_t) and functions get_arcache and get_awcache to
  calculate AxCACHE bits for a given memory type.
• Add axi_decerr_slv.
• Add axi_id_prepend.
• Add fully compliant axi_xbar.
• Add documentation on axi_mux, axi_demux and axi_xbar
• Module overview to README.md

Changed

• axi_test: The reset tasks in axi_driver and axi_lite_driver are now functions.
• Bump common_cells to 1.16.0 which contains the address decoding logic used in axi_xbar.

Fixed

• axi_intf move import into interface bodies.
• axi_pkg make functions automatic, fixing a problem with Synopsys.