added FileParser class
edited FileParser to provide working build() method
modified FileParser class to work with files
Merge branch 'master' of https://github.com/Michciu/AISDI-Analiza-Relacji-Biznesowych into strato-cumulus/fileparser
changes according to cleanup
encoding changed
Merge branch 'master' of https://github.com/Michciu/AISDI-Analiza-Relacji-Biznesowych into strato-cumulus/fileparser
Added Parser class to create Mail objects

Parser class is now complete with unordered_set for storing pointers to
Person objects
Timestamp creation added
parser class modified to work with unordered_map

resolved unnecesary Person object creation
Merge pull request #3 from Michciu/strato-cumulus/fileparser

Initial parser implementation