This is needed because the module dependencies are an issues if
the conversion is done in basegfx. The bigger issue will come when
the ComplexColor conversion will be done as basegfx can't depend on
docmodel because of circular dependencies.
The BGradient is also more suitable for docmodel anyway as the
previously it was part of the model and is not a basic (gfx)
type - however this doesn't move the whole BGradient into docmodel
yet.
Change-Id: Id91ce52232f89f00e09b451c13da36e2854ae14b
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/155674
Tested-by: Jenkins
Reviewed-by: Tomaž Vajngerl <quikee@gmail.com>
242bb3fdda