Automatically generate an image whose 4 RGBA channels (Red, Green, Blue and Alpha) come from other image's RGBA channels.
Specially useful to author the RGB and Alpha channels using 2 separate images.

- Any image whose name ends with ".SOURCE.DESTINATION" will be used as an input for a generated texture with the same name.

- Both SOURCE and DESTINATION are a combination of 1 to 4 of the RGBA letters (case insensitive), both with the same letter count.
  SOURCE and DESTINATION letters are paired by its position and list what SOURCE channel gets copied to what DESTINATION channel.
  For example, "Character.rrrr.rgba" (INPUT) will generate an image called "Character" (OUTPUT) where INPUT's Red channel will be copied to all of OUTPUT's channels

- The generated image will be stored in PNG using the largest width and height of its input image.

- Every time an input image is reimported (for example, when it's edited), it regenerates the needed images keeping them up-to-date.



THINGS TO CONSIDER:
- Generated images only have 8 bits per channel.
- Generated images only use the input images stored on its same folder.
- Moving images don't trigger the generation of images.



EXAMPLES:
  Test.rgba.rgba.png (RGBA)
                      ││││
            Test.png (RGBA)


  Test.r.r.png (RGBA)    test.r.g.png (RGBA)    test.r.b.png (RGBA)    test.r.a.png (RGBA)
                │┌─────────────────────┘                      │                      │
                ││┌───────────────────────────────────────────┘                      │
                │││┌─────────────────────────────────────────────────────────────────┘
      Test.png (RGBA)


  Test.rgb.rgb.png (RGBA)    test.r.a.png (RGBA)
                    │││┌───────────────────┘
          Test.png (RGBA)