feat(Core/DBUpdater): implement db auto update (#6576)

* feat(Core/DBUpdater): implement db auto update

* 1

* 2

* 3

* Some minor improvements

* add find bin for mysql 8.0

* lic

Co-authored-by: Kitzunu <24550914+Kitzunu@users.noreply.github.com>

src/server/database/Updater/UpdateFetcher.h

@@ -55,6 +55,7 @@ private:
     enum State
     {
         RELEASED,
+        CUSTOM,
         ARCHIVED
     };
 
@@ -64,21 +65,33 @@ private:
             : name(name_), hash(hash_), state(state_), timestamp(timestamp_) { }
 
         std::string const name;
-
         std::string const hash;
-
         State const state;
-
         uint64 const timestamp;
 
         static inline State StateConvert(std::string const& state)
         {
-            return (state == "RELEASED") ? RELEASED : ARCHIVED;
+            if (state == "RELEASED")
+                return RELEASED;
+            else if (state == "CUSTOM")
+                return CUSTOM;
+
+            return ARCHIVED;
         }
 
         static inline std::string StateConvert(State const state)
         {
-            return (state == RELEASED) ? "RELEASED" : "ARCHIVED";
+            switch (state)
+            {
+            case RELEASED:
+                return "RELEASED";
+            case CUSTOM:
+                return "CUSTOM";
+            case ARCHIVED:
+                return "ARCHIVED";
+            default:
+                return "";
+            }
         }
 
         std::string GetStateAsString() const