added: README EN and RUS; updated: Makefile commands

added: tests for GET and DELETE methods

added: tests for GET and DELETE methods

added: testing POST and PATHC methods

added: mehtod for setting default tokens in database; updated: .env file to provide tokens

added: banner GET caching with Redis

updated: DELETE operation woth PostgreSQL; added: GET operations with PostgreSQL

added: uodating implementation of PostgreSQL database

added: authorization,banner POST with PostgreSQL

added: authorization,banner POST with PostgreSQL

added: authorization,banner POST with PostgreSQL

added: user_banner GET by feature and tag with mock DB

added: banner GET by feature or tag filters with mock DB

added: banner GET by feature or tag filters with mock DB

added: banner DELETE by id with mock DB

added: banner PATCH by id with mock DB

added: deploy application into docker-compose

added: deploy application into docker-compose

added secret file to .gitignore file

added middleware and banner POST handling with mock DB