Replace bu_isciii by buisciii where necessary

[victor5lm]

After migrating from setup.py to pyproject.toml, the buisciii-tools have to be run using bu_isciii instead of bu-isciii, as it was done so far. Considering this, we are going to migrate definitely to buisciii. Therefore, you have to do the following changes in the code:

1. You have to update __init__.py, you have to replace bu_isciii by buisciii-tools:
   

   buisciii-tools/bu_isciii/__init__.py

   Line 7 in 9d921dc

   __version__ = pkg_resources.get_distribution("bu_isciii").version

2. You have to replace the variable bu_isciii by buisciii in pyproject.toml, right at the beginning of the line:
   

   buisciii-tools/pyproject.toml

   Line 62 in 9d921dc

   bu_isciii = "bu_isciii.__main__:run_bu_isciii"