UTF8 encoding

## Proposed feature
Hello!

It would be great, if there would be an additional variable for the tomcat URIencoding, so I could set it to UTF-8, as described here https://www.baeldung.com/tomcat-utf-8 

Let me know, if that is something you would like to add, then I could set up a Pull Request, shouldn't be to difficult (change in template + defaults)