Rebrush hermes frontend

[wingsofovnia]

The current frontend is a piece of shit spaghetti code that is very hard to maintain. I think it's a good time to rewrite it from scratch coz implementing new features turns out into exceptional pain.

Some ideas about new frontend:

• Still AngularJS (the only thing we are "good" at)
• ES6
• Components based code

Todo list:

• Init AngularJS+Webpack+ES6 project (done: Add initial frontend v2 (component based, i18n) #166)
• Attach OpenAPI definitions (Add OpenAPI (Swagger) 2 & 3 api definitions #167) to generate js client (done: Enable swagger backend client on frontend-v2 #184)
• Implement Agency page (closes Create view for agencies #120) (done: Implement Agencies Fv2 view: list, edit, create, filter #193)
• Implement Stops page
• Implement Lines page
• Implement Schedules page
• Implement Schedule page (closes Allow manual time enhancing in Trips on frontend #161)
• Implement Schedule collisions

Also must close #139, #112