1.openssl upgraded from 1.1.0f to 1.1.1d
2.add nghttp2 library for http2 support, version 1.40.0
3.curl upgraded from 7.66.0 to 7.68.0
4.update iOS platform example
5.update Android platform example
6.iOS add arm64 cpu architecture
7.remove old scripts
1.openssl upgraded from 1.1.0f to 1.1.1d 2.add nghttp2 library for http2 support, version 1.40.0 3.curl upgraded from 7.66.0 to 7.68.0 4.update iOS platform example 5.update Android platform example 6.iOS add arm64 cpu architecture 7.remove old scripts