Fix error in resource file, disregard previous note about compile process

Ignore the compile process outlined in
106b1cfaa277db95effef80b3adf146bfb4a949f.

rc.exe does not need to be used, in fact it yeilds the same result as
windres beofre this commit. The error is caused by symbols used in the rc
file being undefined. Including the header file fixes it.

To build:
windres -i enable_visual_style.rc -o resource.o
gcc -mwindows -o canned_pastes canned-pastes.c resource.o

This will build a binary that will try to load the correct comctl.dll
regardless of the location of the binary.