(Partial Update) Ensure to renderer dirty if Geometry changed

(Partial Update) Ensure to renderer dirty if Geometry changed

Let we also make item.mRenderer is Updated() if Render::Geometry information
changed.

For example, Toolkit::TextEditor change the vertex buffer data and indicise
when some texts, or highlighted area are changed.
But if the size of each actors are not be changed, the infomation of
geometry changed not be applied to the PreRender() dirtyrect calculation.

To fix this issue, let we make ensure that geometry is updated at Upload time,
and notify it to Render::Renderer's Update() time.

Change-Id: I67ff3c9e7a155703fba6b3be8b80d5aede8ce02d
Signed-off-by: Eunki, Hong <eunkiki.hong@samsung.com>