[Client] Anonymize data at export time

[doriancransac]

Allow the user to define regex so that he can export data in an anonymous way and share it with others.

Each regex can affect "just the package", or "just the classname" or "just the method name" or "just the code line number"

[doriancransac]

Turning this into high prio. It doesn't even really have anything to do with the sensitivity of the data but just the ability to use saved sessions in public case studies (so that package/class/method names can be easily modified / hidden)