Universal build of LSL Recorder for Android (x86, x86_64, armeabi-v7a, arm64-v8a)
Improvements:
- Updated liblsl version (1.16.0 -> 1.16.2)
- Update gradle, buildTools, NDK and dependencies to latest version
- Fix gradle prebuilt jniLibs copy tasks
- Update gradle build instructions (from source and prebuilt)
- Include jniLibs (libgenerate_xdf.so, libjnidispatch.so and liblsl.so)