Add address tag, specs and documentation

app/concepts/matestack/ui/core/address/address.haml

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+%address{@tag_attributes}
+  - if options[:text].nil? && block_given?
+    = yield
+  - else
+    = options[:text]

app/concepts/matestack/ui/core/address/address.rb

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+module Matestack::Ui::Core::Address
+  class Address < Matestack::Ui::Core::Component::Static
+
+  end
+end

docs/components/address.md

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+# matestack core component: Address
+
+Show [specs](../../spec/usage/components/address_spec.rb)
+
+The HTML `<address>` tag implemented in ruby.
+
+## Parameters
+
+This component can take 2 optional configuration params and either yield content or display what gets passed to the `text` configuration param.
+
+#### # id (optional)
+Expects a string with all ids the address should have.
+
+#### # class (optional)
+Expects a string with all classes the address should have.
+
+#### # text (optional)
+Expects a ruby string with the text the address tag should show.
+
+## Example 1 - yield a given block
+
+```ruby
+address do
+  plain 'Codey McCodeface'
+  br
+  plain '1 Developer Avenue'
+  br
+  plain 'Techville'
+end
+```
+
+returns
+
+```html
+<address>
+  Codey McCodeface<br>
+  1 Developer Avenue<br>
+  Techville
+</address>
+```
+
+## Example 2 - render options[:text] param
+
+```ruby
+address text: 'PO Box 12345'
+```
+
+returns
+
+```html
+<address>
+  PO Box 12345
+</address>
+```

spec/usage/components/address_spec.rb

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+require_relative '../../support/utils'
+include Utils
+
+ describe 'Address Component', type: :feature, js: true do
+
+   it 'Example 1 - yield a given block' do
+
+     class ExamplePage < Matestack::Ui::Page
+
+       def response
+        components {
+          address do
+            plain 'Codey McCodeface'
+            br
+            plain '1 Developer Avenue'
+            br
+            plain 'Techville'
+          end
+        }
+      end
+
+     end
+
+     visit '/example'
+
+     static_output = page.html
+
+     expected_static_output = <<~HTML
+    <address>Codey McCodeface<br>1 Developer Avenue<br>Techville</address>
+    HTML
+
+     expect(stripped(static_output)).to include(stripped(expected_static_output))
+  end
+
+   it 'Example 2 - render options[:text] param' do
+
+     class ExamplePage < Matestack::Ui::Page
+
+       def response
+        components {
+          address text: 'PO Box 12345'
+        }
+      end
+
+     end
+
+     visit '/example'
+
+     static_output = page.html
+
+     expected_static_output = <<~HTML
+    <address>PO Box 12345</address>
+    HTML
+
+     expect(stripped(static_output)).to include(stripped(expected_static_output))
+  end
+
+ end