UNITSOFMEASUREMENT-72: Move some elements in "format" to RI/other impl 

Task-Url: https://java.net/jira/browse/UNITSOFMEASUREMENT-72
UNITSOFMEASUREMENT-72: Move some elements in "format" to RI/other impl 

Task-Url: https://java.net/jira/browse/UNITSOFMEASUREMENT-72
UNITSOFMEASUREMENT-69: Rethink hierarchy (and possibly naming) of
Quantity and Measurement 

Task-Url: https://java.net/jira/browse/UNITSOFMEASUREMENT-69
UNITSOFMEASUREMENT-69: Rethink hierarchy (and possibly naming) of
Quantity and Measurement 

Task-Url: https://java.net/jira/browse/UNITSOFMEASUREMENT-69
UNITSOFMEASUREMENT-69: Rethink hierarchy (and possibly naming) of
Quantity and Measurement 

Task-Url: https://java.net/jira/browse/UNITSOFMEASUREMENT-69
UNITSOFMEASUREMENT-69: Rethink hierarchy (and possibly naming) of
Quantity and Measurement 

Task-Url: https://java.net/jira/browse/UNITSOFMEASUREMENT-69
UNITSOFMEASUREMENT-69: Rethink hierarchy (and possibly naming) of
Quantity and Measurement 

Task-Url: https://java.net/jira/browse/UNITSOFMEASUREMENT-69