feat: adds the file logging feature and refactors the internal encode…

…rs structure

feat: adds the log to a file feature to the Logger
refactor: completely refactors the internal encoders code in order to make it more clear and concise
docs: updates the README.md file

fix: solves a bug in the daily date update function

fix: now daily date update takes into consideration hour shift in different time zones  for long running programs

chore: updates testify deps patch

fix: updates the default logger fatalErr msg

feat: multiple major improvements (#10)

feat: adds JSON custom marshal
feat: adds YAML custom marshal
perf: custom marshal drastically decreases heap allocations and increases log speed
docs: updates the README.md
test: adds benchmark test command to Makefile

feat: adds the Color method to all the Logger encoders

fix: removes a redundant buildMsg method call increasing logger perfo…

…rmances

fix: makes the datetime printer service thread safe

perf: adds dateTime service performance improvement and colorsPrinter…

… service minor refactor.

* perf: adds time and date caching system to the datetimeprinter to improve performances

* refactor: updates method name

* refactor: cleans up and revisits a bit the colors printer service with tests

* refactor: updates the logs naming in the json encoder

* refactor: updates the log level naming in the yaml encoder

perf: reduces the number of heap allocations alleviating the garbage …

…collector work