indexed color png support

png: IDX support

(cherry picked from commit 9a9a8e79b4efa392661b921a559c366f5e29ffd7)

1.1.6

fix automatic conversion (532f9e67c5d4705c7ca32be737d3c961a9220416)

1.1.5

port jpeg decoding test to deno

JPEG support

1.1.4

port JPEG decoding to Deno

1.1.2

• added support for decoding greyscale (+ alpha) images and 16-bit-per-channel images
• added SVG rendering

dominantColor

(cherry picked from commit 8d1bd6f2b6ef6ccf03da70f5a09d458b707b55e7)

perf improvements

re-add bound check

(cherry picked from commit d14edb3395917973e4b828d24fca306a5e32aa24)

text rendering

wasm font rendering

(cherry picked from commit 5ff211818d920309ac9bf2243fea433c8f6eca92)