update for OpenSSL 1.1.1

[danramteke]

Thanks to these comments on Github:

#9 (comment)
#9 (comment)
openssl/openssl#11212 (comment)

Tasks accomplished

• update to OpenSSL 1.1.1, which is compatible with M1
• Add AB prefix to types
• Add GitHub action to confirm it still builds (free for open source)

[NSExceptional]

It is impossible to tell what you actually changed in the implementation, because you changed all of the indentation as well. Imo this will probably not get merged in its current state