Kotka's additions

[dziban303]

Describe your changes

kotka's additions in #296

The plane-alert-db additions were duplicated three times. Cut out the extras. Verified via FAA and, occasionally, RB/FA. Smell test passed but I can't guarantee 100% accuracy.

Fixes: AD84BA/N970MB was entered incorrectly, it's a Kaman K-MAX.
King Air codes were BE9L not C90.
Tweaked some plain English model types to match FAA: although the difference between an EC-635 and an EC-135 are apparently small, best to go with what's on the registration, I think. Also went with Squirrels rather than AStar, same thing I guess.

Pics: The pics were messed up. Many or most of the image URLs were duplicated for different aircraft, like the same pic was used for A1801F (correct) as for AC6E92 (incorrect, totally different kind of helicopter). I did not exhaustively review them and I'm not going to try to fix them, so I've just removed them entirely.

Original PR notes:

PLANE INFO:
Sources where I pulled tail numbers from before looking them up in flight trackers. https://www.helis.com/database/org/Texas-Helicopters/,
wildfire helicopters/planes found while watching the area where there have been wildfires.
planes/helicopters caught in my plane fence page.
I searched flightaware, adbs exchange, google, faa for information based on tail numbers.
Photos found from searching google, flightaware, jetpihotos

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