Support For Android arm64-v8a build

[JinhyukLc]

By Aug 2019, New and Updated apps must include a 64 bit version, but this plugin doesn't seem to support arm64. Thanks.

[netpyoung]

Thank you for giving information about that. This project using android-database-sqlcipher-3.5.9.aar

and This file already contains library which support 64bit version. So You can using this package without worry.

.
├── AndroidManifest.xml
├── aidl
├── android-database-sqlcipher-3.5.9.aar
├── assets
├── classes.jar
├── jni
│   ├── arm64-v8a
│   │   └── libsqlcipher.so
│   ├── armeabi
│   │   └── libsqlcipher.so
│   ├── armeabi-v7a
│   │   └── libsqlcipher.so
│   ├── x86
│   │   └── libsqlcipher.so
│   └── x86_64
│       └── libsqlcipher.so
├── libs
└── res