implement regex scan and data generation

[tender-barbarian]

Implemented regex scanning and data generation for common values such as: IP, MAC, Email, URL. More common values will be added at a later time.

Also slightly reworked how values are replaced:

1. Previously replacement happened whenever value which should be anonymized was discovered in a single log line.
2. Currently values to be replaced are discovered first, added to replacementMap (oldValue:newValue) and only then replacements are executed on log line (according to replacementMap).

Such change allows to keep values unique, rather than replacing iterations of same original value to different new value each time. Uniqueness is kept for single log line only - we can later expand it to whole input data, but we need to consider how keeping potentially massive maps will affect memory.