CHEF-3404: Provider Resolver

Implements lazy evaluation of which chef provider to use based on evaluating the system.  Lets the the service resource select its provider based on interrogating the system rather than assigning a single default provider per distro.  Providers encapsulate their own logic for determining which resources they support.
Can you describe the purpose of `replaces` @lamont-granquist? I don't think I'm able to put my head around it.