partially fixes #17 - Hard to parse redis config file due to non sect…

…ion and space separated kv

implements #16 - added a helper method for reading multi-line values …

…as one-line text

fixing unit tests

fixes #15 - Incorrect result of SetValue method

fixing a regression in unit tests

-

just code formatting in tests

renaming Salaros.Config namespace to Salaros.Configuration

leaving NuGet package id intact

yet another attempt to exclude helper classes from test coverage score

fixing a critical bug with config files read from string and not a file