feat: inject stock strings.dll Resources (opt. SPV3 bmp) into "strings.dll" if missing

Latest Chimera 1.0 builds have the stock resources, but older builds of both Chimera and Monolith lack the stock Dialogs, Strings, Bitmap, and more.

The strings and dialogs are required by halo/haloce for the message boxes shown for errors.

Truthfully, overriding the splash screen bitmap with an external file would be more convenient for modder and player customization.