refactor build clash scripts

core/src/main/cpp/CMakeLists.txt

@@ -0,0 +1,10 @@
+cmake_minimum_required(VERSION 3.0)
+
+set(CMAKE_C_STANDARD 11)
+set(CMAKE_CXX_STANDARD 17)
+
+include_directories(${CLASH_OUTPUT}/${ANDROID_ABI} ${CLASH_SOURCE})
+link_directories(${CLASH_OUTPUT}/${CMAKE_ANDROID_ARCH_ABI})
+link_libraries(log clash)
+
+add_library(bridge SHARED bridge.c)

core/src/main/cpp/bridge.c

@@ -0,0 +1,8 @@
+#include <jni.h>
+
+#include "libclash.h"
+
+JNIEXPORT jint JNI_OnLoad(JavaVM *vm, void *unused) {
+    initialize();
+    return JNI_VERSION_1_6;
+}