Improve Codacy static analysis checking so that it's relevant

[nadvolod]

Codacy is our static analysis tool that I enabled with default configuration. This might be good enough. However, it might also require some tweaking of the types of rules that we want it to check for in Java. Some rules might be silly. Others might not be turned on and should be. I am not a Java expert and would like assistance from a more experienced Engineer to see which rules, if any, should be turned on/off. That way, our static code analysis can be most relevant