New Number match for equivalence

[jet11x]

I've found code easier to read and more functional when moving from assertEquals to the Hamcrest matchers. However, I've found it a pain have to make sure the types of primatives are the same given the matchers require Objects.

I've written a small matcher I've called IsNumberEquiv with a static check called equivTo which passes if values are numerically the same.

I've written a reasonable initial set of tests and covered the standard implementations of Number. Happy to contribute this as appropriate e.g. patch or commit, if there's interest.

[tumbarumba]

Can you show some sample code that demonstrates the problem?

I'd be curious to see your IsNumberEquiv. Feel free to raise a PR, if you're keen.