new architecture

[sattellite]

Replace old multifunctional code with separated part that can only prepare text to publication.

Closes issue #1

New code must:

• [x] prepare database
• [x] have http handler
• [x] fetch hearings data from bga32.ru site
• [x] store data to data base
• [x] handle data to hearings data: extract place, time, topics, proposals and url
• [x] generate public hearing string
• [x] use cache for fetched pages
• [x] send found hearings to telegram bot