Add new QtQuick.Effects plugin for post-processing effects.
The plan is to add essential effects directly into QtQuick,
not to duplicate Qt Graphical Effects.
Initially the plugin will contain MultiEffect which supports
7 different effects in a single ShaderEffect (brightness,
contrast, saturation, colorize, blur, shadow, mask). Combining
multiple effects into a single shader is more performant than
chaining multiple effect items. Depending on used features,
the most optimal shader gets selected.
Includes two examples demonstrating the usage of MultiEffect.
Task-number: QTBUG-106651
Change-Id: I35865030fd4b7a1f657146cee03b195451545bc6
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@qt.io>
Kaj Grönholm