feat: add support for the minecraft BCC mod (#429)

CHANGELOG.md

@@ -9,6 +9,7 @@
 ### 4.3.0
 * Fix `Post Scriptum` not being on the valve protocol.
 * Fix `Epic` protocol's `numplayers` not being in the `raw` field.
+* Added support for the Minecraft [Better Compatibility Checker](https://www.curseforge.com/minecraft/mc-mods/better-compatibility-checker) Mod.
 
 ### 4.2.0
 * Renamed `Counter Strike: 2D` to `CS2D` in [games.txt](games.txt) (why? see [this](https://cs2d.com/faq.php?show=misc_name#misc_name)).

protocols/minecraftvanilla.js

@@ -42,7 +42,7 @@ class MinecraftVanilla extends Core {
         const str = reader.rest().toString('utf8');
         this.debugLog(str);
 
-        const json = JSON.parse(str);
+        const json = JSON.parse(str.substring(0, strLen));
         delete json.favicon;
 
         state.raw = json;
@@ -63,6 +63,16 @@ class MinecraftVanilla extends Core {
         for (let i = state.players.length; i < Math.min(json.players.online, 10000); i++) {
             state.players.push({});
         }
+
+        // Better Compatibility Checker mod support
+        let bccJson = {}
+
+        if (str.length > strLen) {
+            const bccStr = str.substring(strLen + 1);
+            bccJson = JSON.parse(bccStr);
+        }
+
+        state.raw.bcc = bccJson;
     }
 
     varIntBuffer(num) {