Add more options

[SamWhited]

Add the following as options:

• interpolation_quality — See libraw's user_qual. This should also have a constant with:
  • 0 — linear interpolation
  • 1 — VNG interpolation
  • 2 — PPG interpolation
  • 3 — AHD interpolation
  • 4 — DCB interpolation
  • 5 —Modified AHD interpolation by Paul Lee
  • 6 — AFD interpolation (5-pass)
  • 7 — VCD interpolation
  • 8 — Mixed VCD/Modified AHD interpolation
  • 9 — LMMSE interpolation
  • 10 — AMaZE intepolation
  • For 5–9 see Add constants for the demosaic options in the demosaic packs #44
• med_passes — The number of median filter passes (see libraw med_passes)
• auto_brightness — Allow turning off auto brightness or setting the threshold (lightness)
• adjust_maximum_thr — Allow setting the channel maximum value threshold in case of channel overflows?
• green_matching — Do secondary processing to fix the green channel imbalance.
• dcb_iterations — Number of passes when performing DCB interpolation.
• dcb_enhance_fl — Enhance colors when performing DCB interpolation.
• fbdd_denoise — FBDD noise reduction.
• es_med_passes — Number of edge-sensitive median filter passes after VCD+AHD demosaic.
• ca_correc — Turn on / off CA correction. Doesn't this already work? Why are there more values for it?
• cared,cablue — See above... why are these different from the dcraw ones?

... TODO: Add more? That's a lot of stuff

Other:

These either have their own issue, or I'm not sure if we care.

• darkness tuple — Allow setting the darkness value per-channel (see Add per-channel darkness option #46)
• use_fuji_rotate — Ensures a 1:1 mapping of raw pixels to output pixels (see Add option for Fuji camera rotation / no-resize on non-square pixel cameras #70)
• rotation — Allow rotating or flipping the image (see Add rotation option #72)
• sony_arw2_hack — Investigate this libraw value?
• eeci_refine — No idea what this does.