Refactor Defaults

[Tom-hayden]

Feature Request

Currently the interfaces/classes

• Defaults
• DateTimeDefaults
• LinearDefaults
• NumericDefaults
• TimeDefaults

Are not properly used. Some classes get their defaults from Defaults whilst other get them from the specific implementations of the defaults.

It might be a good idea to use access modifiers to enusre that the "correct" defaults is being used.

Also whilst not required now, it might be a good idea to seperate out the default granularity from the finest granularity.

Estimate - Fibonacci number sequence 1,2,3,5,8,13 etc

(Optional) Potential approaches to solution

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