LogicArray in cocotb has been rewritten

[davekeeshan]

There has be a few extensive changes in cocotb that have resulted in cocotbext-axi not working against the head of the repo. It related to this change cocotb #3792, which changes and deprecates how things are done.

In my testing this is the first fallover in cocotbext-axi:

File "/mnt/sda/projects/cocotbext-axi/cocotbext/axi/stream.py", line 123, in __init__
    v.binstr = 'x'*len(v)
    ^^^^^^^^
AttributeError: property 'binstr' of 'LogicArray' object has no setter

I fixed (or bypassed) that one, but there are more, I am still unclear what this base code is doing and just the start of the rabbit hole:

Traceback (most recent call last):
  File "/mnt/sda/projects/cocotbext-axi/cocotbext/axi/axi_master.py", line 592, in _process_write_resp
    bid = int(getattr(b, 'bid', 0))
          ^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/mnt/sda/projects/cocotb/src/cocotb/types/logic_array.py", line 460, in __int__
    return self.to_unsigned()
           ^^^^^^^^^^^^^^^^^^
  File "/mnt/sda/projects/cocotb/src/cocotb/types/logic_array.py", line 361, in to_unsigned
    value = value << 1 | int(bit)
                         ^^^^^^^^
  File "/mnt/sda/projects/cocotb/src/cocotb/types/logic.py", line 243, in __int__
    raise ValueError(f"Cannot convert {self!r} to int")
ValueError: Cannot convert Logic('X') to int

Reporting to start, I may get time to see if I can propose fixes

[p12tic]

This will be fixed by #91.