vcl: Move ImplDelData functions to app/svdata.cxx

Change-Id: I5b0ef6a1ab77dec1aef0feb0a64d985c1a44820c
VCL: Move accessibility functions to accessibility.cxx

Change-Id: Ieb128c2ea121bacd9cd952a9400a85f2b9da5a7e
vcl: reformat window.hxx

Change-Id: I444cd8d57418ed7f064a2bf9f87be9fba6cc5789
vcl: move legacy accessibility functions to own file

Change-Id: I32e10555d496ef3c9d5fa895c649e3eceb3fc366
vcl: reorganize accessibility functions in window.hxx

Change-Id: I25bd1368c17bcdbd642d60b056584243cd429cc0
vcl: Move constructor and graphics functions to top of window.cxx

Change-Id: I9a2337eb5fb4a54cebe810e1bc2de2678a4b18b0