fixed bugs, memory leaks, etc

src/main/java/dev/zprestige/prestige/inject/NativeBridge.java

@@ -10,6 +10,9 @@ public final class NativeBridge {
     /** Appends a line to prestige-native.log, which the injector tails to show progress. */
     public static native void log(String message);
 
+    /** Disables the class file load hook and unloads prestige_native.dll shortly afterwards; nothing may call the natives after this. */
+    public static native void release();
+
     /** JVMTI RedefineClasses for one class; returns the JVMTI error code, 0 on success. */
     public static native int redefine(Class<?> type, byte[] bytes);
 }