Changed class name from Class1 to Preprocessor
Added interface IPreprocessor and created empty implementing methods in Preprocessor
Implemented mapping of Polish characters to English ones
First draft of the SearchSummary module implementation.

- added IDocumentBuilder interface
- implemented SummaryGenerator.Generate
Persistance manager
I've added TxtDocumentBuilder class.
I've learning git.
I'm learning
Normalize line endings.

All future commits will have their line endings normalized
automatically.
Added SearchSummarytest solution; Implemented TxtDocumentBuilder
Implemented TxtDocumentBuilder
Fix asci art
Add and test basic PatternMatching functionality.
Add packages/ to .gitignore
Stop tracking packages/ in git repository
Remove public modifiers in IPreprocessor
Add Preprocessing.Tests project with a single test
fixed whitespaces
Merge branch 'SearchSummary'
Updated the ISummaryGenerator interface.

- renamed FileInfo struct to MatchingFile to avoid conflict with the
  built-in FileInfo
- replaced file path with a FileInfo structure in MatchingFile struct
- modified ISearchSummary.Generate parameter list: added searchQuery
  and inputPaths