Updated Sigmoid Parameter's Section

Q: See below

• Add formula tooltip to the parameter's section including definitions of variables

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• Remove the arrows to add/remove sigmoid lines.
• Add an Add button to entire section
• Add an Reset button for entire scan
• Add to each sigmoid line:
  • Reset for the single sigmoid line [Will have to store original values somewhere]
  • Delete
  • Invalidate: Keep the data but do not calculate the kappa.
    • Hide line