[4.0] ImageVisual Action::Reload added

[4.0] ImageVisual Action::Reload added

Reload forces reloading causing the texture to be reloaded even if cached.
It updates all uses of this texture (same id) across all image visuals.

The texture is replaced hence the renderer gets updated
 as already references the TextureSet.

Change-Id: Idb484d18373d54083727c80f563b7a5f7fb2be8c
Signed-off-by: Adeel Kazmi <adeel.kazmi@samsung.com>