source.get_parameters() removed

[SampsonML]

It seems the .get_parameters() method from Source has been removed for .get(parameters). This breaks the hallucination score routine here https://github.com/pmelchior/scarlet2/blob/37f8b0f97db02ef08765e779f81f566a2b8e0406/scarlet2/plot.py#L525

88 will be altering and fixing this anyway, but issue made for book-keeping