fix(metadata): route prefix in the operation name

[soyuka]

fixes #5203

[usu]

Hi @soyuka. Thanks for looking into this. I tried to test this with my application, but didn't work:

• Factories are decorated as per the following chain: OperationNameResourceMetadataCollectionFactory --> LinkResourceMetadataCollectionFactory --> UriTemplateResourceMetadataCollectionFactory

• In UriTemplateResourceMetadataCollectionFactory on line 83, the operation name is already set (without routePrefix)

• In OperationNameResourceMetadataCollectionFactory on line 47, the loop is aborted, because the name is already set. Hence, the new logic to include routePrefix is never executed.