Moved headers to includes, various changes...

+ Added better UID checks.
+ Added MS_SLAVE root mount in the new mount namespace.

module/jni/include/logging.hpp

@@ -0,0 +1,15 @@
+#pragma once
+#include <android/log.h>
+#include <string.h>
+#include <errno.h>
+
+#ifndef NDEBUG
+static constexpr auto TAG = "ZygiskAssistant/JNI";
+#define LOGD(...) __android_log_print(ANDROID_LOG_DEBUG, TAG, __VA_ARGS__)
+#define LOGI(...) __android_log_print(ANDROID_LOG_INFO, TAG, __VA_ARGS__)
+#define LOGE(...) __android_log_print(ANDROID_LOG_ERROR, TAG, __VA_ARGS__)
+#else
+#define LOGD(...)
+#define LOGI(...)
+#define LOGE(...)
+#endif