[2.3][Component/Security] Fixed some phpdocs in Security/Core

| Q             | A
| ------------- | ---
| Bug fix?      | kinda*
| New feature?  | no
| License       | MIT

\* - those missing phpdocs lead to problems when debugging with IDE, as well as some were wrong (i.e. `SecurityContextInterface::isGranted()`) as parameters differ in interface & class implementing it