[WIP] File storage interface
Create file config And make storage/files dir
Change FileStorageInterface
Add getName method in FileInterface
Change FileStorageInterface
Add getIdentifier method
Add LocalStorageTest
Fix LocalStorage and change FileStorageInterface
Change FileInterface adding setIdentifier
Merge branch 'master' into feature-file-storage
Merge pull request #80 from toiee/feature-file-storage

File storage interface