Fold Ward into the single Institution install as its psychiatric-care
layer. package.sh now builds Ward clean and vendors Ward.dll plus its
defs and textures alongside the other layers, and the settings shim
gains a Ward (psychiatric care) checkbox that writes the shared
InstitutionSettings.ward flag.
Re-assembling also carries in Justice's now-shipping policing defs (the
constable work type and crime thoughts), so the aggregate finally
bundles colony crime and the weighed arrest as well. README updated to
five layers over one Core with policing shipped and Ward folded in;
adds the changelog, the Workshop preview, and the preview generator.
flan