Implement many more nodes

Adds these new styling and formatting nodes
* strike
* highlight
* linebreaks
* pagebreaks
* Hyperlinks

lib/notare/document.rb

@@ -4,7 +4,7 @@ module Notare
   class Document
     include Builder
 
-    attr_reader :nodes, :styles
+    attr_reader :nodes, :styles, :hyperlinks
 
     def self.create(path, &block)
       doc = new
@@ -21,7 +21,9 @@ module Notare
       @current_table = nil
       @current_row = nil
       @num_id_counter = 0
+      @has_lists = false
       @images = {}
+      @hyperlinks = []
       @styles = {}
       register_built_in_styles
     end
@@ -42,10 +44,25 @@ module Notare
       @nodes.select { |n| n.is_a?(Nodes::List) }
     end
 
+    def uses_lists?
+      @has_lists
+    end
+
+    def mark_has_lists!
+      @has_lists = true
+    end
+
     def images
       @images.values
     end
 
+    def register_hyperlink(url)
+      rid = next_hyperlink_rid
+      hyperlink = Nodes::Hyperlink.new(url: url, rid: rid)
+      @hyperlinks << hyperlink
+      hyperlink
+    end
+
     def register_image(path, width: nil, height: nil)
       return @images[path] if @images[path]
 
@@ -61,11 +78,17 @@ module Notare
     def next_image_rid
       # rId1 = styles.xml (always present)
       # rId2 = numbering.xml (if lists present)
-      # rId3+ = images
-      base = lists.any? ? 3 : 2
+      # rId3+ = images, then hyperlinks
+      base = @has_lists ? 3 : 2
       "rId#{base + @images.size}"
     end
 
+    def next_hyperlink_rid
+      # Hyperlinks come after images
+      base = @has_lists ? 3 : 2
+      "rId#{base + @images.size + @hyperlinks.size}"
+    end
+
     def register_built_in_styles
       # Headings (spacing_before ensures they're rendered as paragraph styles)
       define_style :heading1, size: 24, bold: true, spacing_before: 240, spacing_after: 120