Getting ready for 1.0.0

I am using this library to implement rchia, the remote chia node management CLI app. This will vet out the implementation with real usage (as opposed as in unit and integration tests).

The API is looking pretty solid and getting ready for release. As rchia evolves there are some helper and convenience methods being added here:

• Helper extension methods
  -- formatting of byte counts in human readable format
  -- converting between mojo and chia
  -- formatting chia amounts as human readable strings
• GetAverageBlockTime