Ship the three eye-state models beside the face pair

2d106det for the eye contours, OCEC for open or closed, SGC for
sunglasses — all three pinned to a batch of one by the same script as
the pair, and installed by every packager so the eyes-open filter works
out of the box. The two classifiers are MIT, code and weights; the
README records their provenance, SGC's undocumented training set, and
the hashes as fetched and as shipped.

packaging/windows/darkroom.nsi

@@ -70,7 +70,7 @@ Section "DarkRoom" SecMain
   File "${STAGE}\darkroom.exe"
   File "${STAGE}\LICENSE"
 
-  ; The seven model files (four face, three scene), beside the executable,
+  ; The ten model files (seven face, three scene), beside the executable,
   ; which is where `library::system_face_models_dirs` looks on Windows —
   ; last, after the user's own directories, exactly as /usr/share is on Linux.
   SetOutPath "$INSTDIR\models"