[Enhancement]: Add pl# and ch# to parameter names when fitting multiple planets and/or channels

[kevin218]

Instrument

Light curve fitting (Stages 4-6)

What happened?

The current naming scheme is confusing when fitting multiple planets over multiple channels.

While we're at it, we should either:

1. Update the damped oscillator parameter names to avoid duplicate keys, or
2. Rewrite the code in s6_Spectra.py to only add parameter names if they are a perfect match.

Error traceback output

No response

What operating system are you using?

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What version of Python are you running?

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What Python packages do you have installed?

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