Merge pull request #2 from tamakiii/hotfix/1_rename_order

Hotfix/1 rename order
Merge pull request #4 from tamakiii/hotfix/2_fix_typo

fix typo
Merge pull request #6 from tamakiii/hotfix/5_redefine_mediate_method

Hotfix/5 redefine mediate method
Merge pull request #8 from tamakiii/hotfix/7_add_test_runner

add unit test runner
fix composer.json
Merge pull request #12 from tamakiii/hotfix/11_fix_composer_json

fix composer.json
add Pdo\StateInterface
Add Pdo\StateAbstract
Add Pdo\States\FetchAll
add Pdo\States\Fetch
add Pdo\States\FetchColumn
add Pdo\States\FetchObject
Add 'driver_option' to StateAbstract
fix argument type of Pdo\States\FetchAll::__construct()
rename StateAbstract -> States\ReadAbstract
delete unused use
add Pdo\ColleaguesInterface
add Pdo\Colleagues
add Pdo\PdoInterface
add Pdo\Pdo