Add new params as vars in ParselyMetadata class

Sources/Metadata.swift

@@ -3,27 +3,66 @@ import Foundation
 public class ParselyMetadata {
     var canonical_url: String?
     var pub_date: Date?
+    var save_date: Date?
     var title: String?
     var authors: Array<String>?
     var image_url: String?
     var section: String?
     var tags: Array<String>?
     var duration: TimeInterval?
     var page_type: String?
+    var urls: String?
+    var post_id: String?
+    var pub_date_tmsp: Date?
+    var custom_metadata: String?
+    var save_date_tmsp: Date?
+    var thumb_url: String?
+    var full_content_word_count: Int?
+    var share_urls: Array<String>?
+    var data_source: String?
+    var canonical_hash: String?
+    var canonical_hash64: String?
+    var video_platform: String?
+    var language: String?
+    var full_content: String?
+    var full_content_sha512: String?
+    var network_id_str: String?
+    var network_canonical: String?
+    var content_enrichments: Dictionary<String, Any>?
+
 
     /**
      A class to manage and re-use metadata. Metadata contained in an instance of this
      class will conform to Parsely's schema.
 
      - Parameter canonical_url: A post's canonical url. For videos, it is overridden with the vId and thus can be omitted.
      - Parameter pub_date: Date this piece of content was published.
+     - Parameter save_date: Date this piece of content was saved.
      - Parameter title: Title of the content.
      - Parameter authors: Up to 10 authors are accepted.
      - Parameter image_url: Where the main image for this post is hosted.
      - Parameter section: Same as section for website integration.
      - Parameter tags: Up to 20 tags on an event are allowed.
      - Parameter duration: Durations passed explicitly to trackVideoStart take precedence over any in metadata.
      - Parameter page_type: The type of page being tracked
+     - Parameter urls: A list of urls associated with this post.
+     - Parameter post_id: A unique identifier for this post.
+     - Parameter pub_date_tmsp: Date this piece of content was published.
+     - Parameter custom_metadata: A string of custom metadata.
+     - Parameter save_date_tmsp: Date this piece of content was saved.
+     - Parameter thumb_url: Where the thumbnail image for this post is hosted.
+     - Parameter full_content_word_count: The number of words in the full content.
+     - Parameter share_urls: A list of urls associated with this post.
+     - Parameter data_source: The data source for this post.
+     - Parameter canonical_hash: The canonical hash for this post.
+     - Parameter canonical_hash64: The canonical hash for this post.
+     - Parameter video_platform: The video platform for this post.
+     - Parameter language: The language for this post.
+     - Parameter full_content: The full content for this post.
+     - Parameter full_content_sha512: The full content sha512 for this post.
+     - Parameter network_id_str: The network id for this post.
+     - Parameter network_canonical: The network canonical for this post.
+     - Parameter content_enrichments: The content enrichments for this post.
     */
     public init(canonical_url: String? = nil,
          pub_date: Date? = nil,