add comments to private methods

Author: robbespo00

src/main/java/io/weaviate/client/v1/misc/model/MultiVectorConfig.java

@@ -30,6 +30,7 @@ public MuveraConfig getMuveraEncoding() {
     return this.muvera;
   }
 
+  // Hide the default getter
   private MuveraConfig getMuvera() {
     return this.muvera;
   }
@@ -42,6 +43,7 @@ public MultiVectorConfigBuilder encoding(MuveraConfig muvera) {
       return this;
     }
 
+    // Hide default builder setter
     private MultiVectorConfigBuilder muvera(MuveraConfig _muvera) {
       return this;
     }