sub_organizations_plugin: Display full mode for SubOrganizationsPlugin relationship page.

- Add page that shows all sub_organizations of given organization.
- Add related organizations block.
- Add page that shows all parent organizations of o organization.
- Added "View all" button for display specific related SubOrganization
- Create partial for view display full SubOrganizations
- Added tests

(ActionItem 2499)

Signed-off-by: Daniel Bucher <daniel.bucher88@gmail.com>
Signed-off-by: Arthur Del Esposte <athurmde@yahoo.com.br>
Signed-off-by: Gabriela Navarro <navarro1703@gmail.com>
Signed-off-by: Marcos Ramos <ms.ramos@outlook.com>
Signed-off-by: Carlos Andre <carlos.andre.souza@msn.com>
Signed-off-by: David Carlos <ddavidcarlos1392@gmail.com>
Signed-off-by: Luiz Matos <luizff.matos@gmail.com>
Signed-off-by: Leandro Alves <leandrosustenido@gmail.com>
sub_organizations_plugin: remove extra whitespace and tab space

(ActionItem2499)

Signed-off-by: Luiz Matos <luizff.matos@gmail.com>