Using the SalColor->CGFloat[] helper gets more of VCL into the scope
which causes conflicting declarations between css::awt and vcl-classic
font attributes so their namespace must be explicitly qualified

(cherry picked from commit 5ffbf312)

Conflicts:
	vcl/aqua/source/a11y/aqua11ytextattributeswrapper.mm

Change-Id: Icc7d7125e508188a9a389014bbc2f40e90bc3e34