This removes [Get|Set]Property and GetDeviceData.

Also add queue_event to replace big macro GEN_EVENT.

existing LoadData function and fix GetData to also return data that
has been set, rather than loaded.

winspool.drv: Outlook 2003 relies on the buffer size returned by EnumPrintersA being big enough to hold the buffer returned by EnumPrintersW.

Some apps depend on the value. Reported by Karsten Elfenbein.

Factorize a bit more some symbol handling code.

pointer value, be sure to have the relevant insn ptr value when
fetching the stack frames (spotted by Peter Oberndorfer).

(regression spotted by Peter Oberndorfer).

pointer value, be sure to always store it (spotted by Peter
Oberndorfer).

current frame for some of the registers we know of (frame pointer,
stack pointer).