add: maps hiding (#13)

This commit adds maps hiding. This commit is taken from Reveny's PR, for more information, see #9.

solves #9

loader/src/common/dl.cpp

@@ -50,7 +50,7 @@ void* DlopenMem(int fd, int flags) {
         .library_fd = fd
     };
 
-    auto* handle = android_dlopen_ext("/jit-cache", flags, &info);
+    auto* handle = android_dlopen_ext("/jit-cache-zygisk", flags, &info);
     if (handle) {
         LOGV("dlopen fd %d: %p", fd, handle);
     } else {