Naming convention for gbuild methods:
- "add" is used for stuff that is logically a part of the target
(i.e. not registered at the Module, but defined in the target's makefile)
- "use" is used for stuff that is logically a different target
(i.e. it is registered at the Module, has it's own makefile, may be
in a different module than the target)
Factor out the DLLPUBLIC dance from bitmapdevice.hxx to a separate
headers as is the normal convention.
Decorate the new debugDump() with BASEBMP_DLLPUBLIC in the header.
Otherwise the definition (which uses SAL_DLLPUBLIC_EXPORT) doesn't
match the declaration.
