strutil: Use WINAPI declaration for functions with fixed arguments
strutil: Added safe memory free functions to string utility library
strutil: Make use of new HeapSafeFree function
strutil: Provide more macro definitions for string conversions
devsane: Replaced internal Trace function with string utility library
wiasane: Make use of new HeapSafeFree and LocalSafeFree functions
coisane: Make use of the new HeapSafeFree function
devsane: Make use of the new HeapSafeFree function