Init worker structure

[vitaliimelnychuk]

As here we have https://github.com/melnychukvitaliy/mysql-migrate Percona helper to run migrations we need something like that in worker.

The main idea of this component is to listen commands from crispy-api and be able to make the following actions:

• run migration
• communicate with API during migration run

Let's start to init simple TS based worker with the ability to run Percona tool
as a second step we will split runner and worker