Handle BIRD 133.1 (initial IBIS 6.0 support)

Fixup some additional warnings from newer versions of python on raw strings.

Fixup some deprecated pyparsing function names

Convert format strings to f-strings

2to3 conversion

Fix typos in last commit.

Add checks for dynamic and static overshoot syntax

Device/Manufacturer cleanup of pybis.

Bump release number to 0.10

Add ibs2symdef.py

Raise exception when '[End]' token not found.

Place copyright into models.py along with some comments

Initial commit