server : move routes files (HTTP endpoint) in a new "routes" folder
server reorganize files and folder by features

- move and rename files
- use associative arrays which store handlers for 'dynamically'
  load module from de db route
- store models_path in test/server/common,
  a global model variable has the same name that the filename of the model
remove unused modules
server db route (handlers and schemas)

- use associative arrays to store path/filename
- add more test for schemas
Merge branch 'packagebyfeature' of https://github.com/smoratinos/codecombat into feature/server-refactor
Merge branch 'feature/server-refactor'