Add support for rendering entity-level annotations schema.org/isBasedOn and schema.org/sameAs relationships

[servilla]

Add support for rendering entity-level annotations schema.org/isBasedOn and schema.org/sameAs relationships in the Data Portal data package landing page.

[servilla]

Entity information is parsed in the following location:

• line 467 edu/lternet/pasta/common/eml/EMLParser.java

  Would need to add setter for Entity object to collect annotation information - this would need to be an array object of type annotation since the cardinality of annotations is 0..infinity

  Would need to create an Annotation class to capture annotation content