Fix TO-126 package

The TO-126-2 and TO-126-3 packages have the wrong dimensions.

The TO-126-3 is the 'standard' and used for transistors. The datasheet is also linked in the footprint. This package has a pitch of 2.28 mm, but the footprint uses a 2.54 mm pitch. The reason is likely, that Caddock (mis-)uses the same package with their TO-126-2 which has a 5.08 mm pitch. See here.

Datasheet

Current footprint

Fixed footprint

This patch fixes the following issues:

• Change pitch of TO-126-3 to 2.28 mm and leave TO-126-2 at 5.08 mm
• Change datasheet link of the TO-126-2 to the Caddock datasheet linked above
• Fixed dimensions of the TO-126-2 to match the Caddock datasheet
• Minor thing. I fixed the Python shebang

Footprint MR: kicad-footprints!3600 (merged)

3D model MR: kicad-packages3D!1000 (merged)

3D model source MR: kicad-packages3D-source!404 (merged)