Add packages directory to ignored paths/files
Make calculate method an instance method. This is the normal pattern to increase testability and is more typical for C# classes.
Simplify array constructors and remove temporary variables  to increase readability. They should optimize the same way regardless.
Simplified conditional logic in options handling for interactive mode.
Added generator implementation.
I/O handlers should accept the more generic IEnumerable<BigInteger> rather than the specific array.
Add ability to specify generator solution and acceptance test using generator.
Change generator method to not depend on a fixed number of requested values.
Merge pull request #1 from tvanfosson/develop

VanFosson-Updates
Added unit test for Calculator
Added unit tests for XML Input
Refactored ConsoleIOHandler to take generic TextReader/Writer paramater to support other potential stream readers/writers
Added tests for XML Writing
Added positive integer validation for input value
Got System.Numerics working, had to change assembly property 'Copy Local' to true
Added tests for argument parsing
Refactored program to be more testable
FibonacciCalculator logic is now split into multiple implementations
Removed attributes for categories in favor of class names
Added tests to execute program frlow
Tested program flow logic
Merge branch 'master' of https://github.com/kensykora/fibonaccipro
Merge branch 'master' into mvc
Ken's changes