[feature/oauth] Update lusitanian/oauth to stable branch

PHPBB3-11673
[feature/oauth] Update storage implementation due to inteface change

PHPBB3-11673
[feature/oauth] Update oauth::logout() to use clearAllTokens()

PHPBB3-11673
[feature/oauth] Make token storage service ignorant

PHPBB3-11673
[feature/oauth] Fix typo in OAuth logout method

PHPBB3-11673