Need to rework the Metadata Provider

[c-harris]

The simple metadata provider was some time replaced by the metadataManager in the o-data-metadata package. but the Simplemetadata provider was left as a wrapper around that class. as such it probably needs to be reworked so it is a complete wrapper around the metadata manager and the rest of POData use the the objects in o-data-metadata.

Because this is likely to lead to an interface change i would like to give some time for other people using the project to have some input on how the provider should work and changes in the interface. specifically @cdcampos i believe you are probably using the provider directly so your input would be appreciated.

[cdcampos]

Not sure what you mean by direct use of SimpleMetadataProvider. In my services I create an instance of this class, on which I then call the add* methods for the different components (types, sets, associations). The instance is then supplied in the second parameter of SimpleDataService.

I don't use any method from interface IMetadataProvider.

[CyberiaResurrection]

@cdcampos, I think @c-harris is referring to an API change in general, not to changing any specific interface (IMetadataProvider, IZoidberg, IRobot, etc).