Make antenna gain and nol options optional #290

Job	Run time
Ruff check and force	11s
Shellcheck	4s
Check commit	1m 16s
Run pytest using Python 3.13	10s
Run mypy	16s
Process test coverage	13s
Build and publish Python 🐍 distributions 📦 to TestPyPI	11s
Process test complexity	12s
	2m 33s

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