Update:

EdlaraServiceProvider:
    * Changed Instance of OpenGraph to be singleton.

Signed-off-by: Gnanakeethan Balasubramaniam <gnanakeethan@gmail.com>
Update:

Edlara\Html\Meta:
    * Updated to use unified Class Instance throughout the runtime
Edlara\Html\OpenGraph:
    * Updated to use unified Class Instance throughout the runtime

Signed-off-by: Gnanakeethan Balasubramaniam <gnanakeethan@gmail.com>