Add Event class to writer. (#369)

* Add acquisition class to writer. Add reference to class in metadata.

* Add Event class to writer.

* fix key for relatedSensor for access to internal object.

---------

Co-authored-by: Johnathan Aspinwall <jwaspin@gmail.com>

lib/adiwg/mdtranslator/writers/mdJson/sections/mdJson_event.rb

@@ -0,0 +1,38 @@
+require 'jbuilder'
+require_relative 'mdJson_identifier'
+require_relative 'mdJson_dateTime'
+# require_relative 'mdJson_objective'
+# require_relative 'mdJson_pass'
+# require_relative 'mdJson_instrument'
+
+
+module ADIWG
+ module Mdtranslator
+ module Writers
+ module MdJson
+
+ module Event
+
+ @Namespace = ADIWG::Mdtranslator::Writers::MdJson
+
+ def self.build(hEvent)
+ puts hEvent
+
+ Jbuilder.new do |json|
+ json.eventId hEvent[:eventId]
+ json.identifiers Identifier.build(hEvent[:identifier])
+ json.trigger hEvent[:eventTrigger]
+ json.context hEvent[:eventContext]
+ json.sequence hEvent[:sequence]
+ json.time DateTime.build(hEvent[:time])
+ # json.expectedObjective @Namespace.json_map(hEvent[:expectedObjectives], Objective)
+ # json.relatedPass Pass.build(hEvent[:relatedPass])
+ # json.relatedSensor @Namespace.json_map(hEvent[:relatedSensors], Instrument)
+ end
+
+ end 
+ end # Event
+ end
+ end
+ end
+end