Update for net-im/openfire

[Nikita Druba]

Hello!

I'm adjusted openfire port for new compiler. And now I tested last 4.5.2 
version with openjdk 8 and 11 versions. Also I tested update from 
previous version to last. For test clean installation update was 
successfully with embedded and external database, but for my production 
server I was needed to remove all files from 
/usr/local/share/java/openfire and configure it again. All my settings 
store in external database and it was not complicated, but for some 
users can be a problem.

It is my first experience here. What must be my next steps to place 
correctly this update to ports tree?

Thanx in advance.