New static link library, load_cfg, which contains load_cfg.c and it's immediate
dependencies (scfglib*.c, scfglib*.c, etc.) for the single-threaded SBBS that need to load the configuration (*.cnf) files from ctrl. Rather than updating 8 projects every time the load_cfg.c dependencies change and rebuilding 8 times, just use a lib. Also fixed-up some linker warnings about EDITANDCONTINUE, blah, blah, blah.
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