winecfg: Added Windows registration information setting

[Filipe Ferreira]

By default wine uses "Change preferred owner in ~/.wine/system.reg"
and "Change preferred organization in ~/.wine/system.reg" when an
application uses
the RegisteredOwner and RegisteredOrganization information from the
registry. This patch adds a two edit boxes to the About tab in winecfg
that allows
setting a different Owner or Organization without having to manually
edit system.reg or using wine regedit. This makes wine more user
friendly.

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Added english controls to winecfg About tab for registration info in En.rc
Added code for retrieving and setting registration info in main.c
Added textbox identifiers in resource.h

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