Add new generic methods: floor, ceiling, log, HasFractionalPart, Round.
Add hardcoded methods for the decimal primitive type
Add a Convert extension method
Fix a bug where some of the interfaces (e.g. IRemainder?) were getting ignored in the NumberUtility class.
Add statistics methods.
Add support for the interfaces with two generic parameters
Test code that implements interfaces with certain combinations of generic parameters
Begin reorganization which will make code much more maintainable.
Remove old code and add tests for every valid primitive combination.
Further refine the tests
Eliminate some more old code
Add the * operator
Add subtraction and division
Add exponentiation and absolute value
Add ceiling, floor, and round