New feature: specify version of Inline XBRL Transformation Registry

Now possible to specify inline XBRL transformation registry version used in output.

The command line defaults to using version 5 (TR5), whereas to get previous aoix behaviour, you will need to specify -t TR2.

This means one can use new transforms in aoix such as ixt:fixed-empty

As we have changed the default TR, I have updated the version of aoix to 0.2 in setup.py.

As we now use a StrEnum, I have updated setup.py to require Python 3.11+