Merge changes I020eec7f,I173020e4,I60f63d55,I974a89fc into devel/master

* changes:
  Support SVG / N_PATCH / Lottie even if we use AnimatedImageVisual
  Make AnimatedImageVisual use single fixed image cache if it is not gif/webp + Fix several bugs at fixed image cache
  Make option to create ImageVisual even if we use webp / gif
  Allow to call Visual::Base::DoAction for public + Remove useless copy operation

diff --cc automated-tests/src/dali-toolkit/utc-Dali-AnimatedImageVisual.cpp
Simple merge

diff --cc dali-toolkit/internal/visuals/animated-image/animated-image-visual.cpp
Simple merge

diff --cc dali-toolkit/internal/visuals/animated-vector-image/animated-vector-image-visual.cpp
Simple merge

diff --cc dali-toolkit/internal/visuals/visual-base-impl.cpp
Simple merge

diff --cc dali-toolkit/internal/visuals/visual-base-impl.h
Simple merge