mtmd: refactor preprocessing + support max/min pixels

Author: ngxson

tools/mtmd/clip-impl.h

@@ -154,8 +154,8 @@ enum projector_type {
     PROJECTOR_TYPE_LFM2,
     PROJECTOR_TYPE_KIMIVL,
     PROJECTOR_TYPE_LIGHTONOCR,
-    PROJECTOR_TYPE_UNKNOWN,
     PROJECTOR_TYPE_COGVLM,
+    PROJECTOR_TYPE_UNKNOWN,
 };
 
 static std::map<projector_type, std::string> PROJECTOR_TYPE_NAMES = {