Fixed comments from mvvm review
Added ILogger
Added logging text fields
Finished mock logger
Added txt logger
Integrated logs into view
Refactored ILogger
Improved table column model
Fixed usage of real logger in tests; removed unused field
Moved logic with logger table row color into viewmodel
Merge pull request #100 from Daniil-Osokin/lab3-logger-regex

[KK] Osokin - Lab3 (ready for review)