remove restriction about s4inma:hasIDValue from Item as it is a shortcut for the ID class. Core hasIdentifier could be instead.

remove restriction about s4inma:hasIDValue from ProductionEquiptment as it is a shortcul for the ID class. Core hasIdentifier could be instead.

Import SAREF and don't use deprecated terms

Closes #9, #11, #12, #16, #15, #6, #5, and #10

See merge request !6

Remove s4inma:consistsOfBatch and s4inma:consistsOfItem and replace their use with saref:consistsOf. Closes #12

Do not use deprecated terms. Replaced saref:Measurement with saref:Observation, saref:makesMeasurement with saref:madeExecution and saref:measuresProperty with saref:observes and removed s4inma:Measurement. Closes #5

Moved sources to labs.etsi.org/rep

See merge request !5

Added missing figure

See merge request SAREF/saref4inma!3