Cannot import Parser due to circular import

[davmlaw]

The linting change introduced a circular dependency

from hgvs.parser import Parser

Now dies with:

/usr/local/lib/python3.10/dist-packages/hgvs/normalizer.py in <module>
     19     HGVSUnsupportedOperationError,
     20 )
---> 21 from hgvs.parser import Parser
     22 from hgvs.utils.norm import normalize_alleles
     23 

ImportError: cannot import name 'Parser' from partially initialized module 'hgvs.parser' (most likely due to a circular import) (/usr/local/lib/python3.10/dist-packages/hgvs/parser.py)

This should be an easy fix, just import in the main section instead of the module

[davmlaw]

tested - fixed