Created basic layout with template inheritance
Creating basic layout; merging back into develop
Generated Account crud controller based on Account entity.
Changed routing method from YML to annotation for DevbananaBudgetBundle
Changed routing method from YML to annotation for DevbananaBudgetBundle
Installed DoctrineMigrationsBundle
Set precision and scale of Account::$balance
Create migration for Account
Make accounts index page more clear.

* Made DevbananaBudgetBundle:Account:index.html.twig show a message if there are no accounts.
* Delete the ID column and made the name a link instead.
* Deleted show account link from actions column.
Added proper labels and field types.
Changed balance to decimal in Account entity.
Changed delete action on Account to require confirmation.

The delete button was changed to a link, and it now directs to a page to request confirmation.

Also made modifications in the titles of pages for improved UI.
Created functional interface to manage accounts.