v1.2.0 : add a vips driver

Images can be loaded using the php vips extension : https://github.com/libvips/php-vips-ext

v1.1.0 : Include a C library based encoder

This new version use automatically a C based encoder when the CPU architecture running the code is a x86_64 processor.

However, the performance is small as the encoder in itself is not the bottleneck when converting an image using Imagick or GdImage

v1.0.0 : Codec with imagick and gd supports to convert from and into various image formats

This is the first stable release of this library.

It also provides some drivers to :

• create QOI images from JPG and PNG images
• create BMP, JPG, PNG images from QOI images