[Issue #1] Automatically fixed PEP8 styling (unopinionated)

[vitorbborges]

I used a package called ruff that automatically parses *.py files and corrects simple styling mistakes according to the PEP8 standard. Two files generated parsing errors:

• sharc/antenna/antenna_f1245.py has the .py suffix but contains .html code;
• sharc/antenna/antenna_res122.py has the .py suffix but contains .html code;

In addition, errors related to:

• module imported but unused;
• local variable assigned but never used;
• variable name lenght;
• maximum of 15 variables per method;

are not automatically fixable.

[vitorbborges]

Ruff is a relatively "unopinionated" code formatter. The pull request #57 generates a more "opinionated" output that fixes import and unused variables mistakes

[vitorbborges]

@brunohcfaria Posso fechar esse PR?