Added basic connection subsystem linking classes
Refactor Http::Responser
Refactor SessionManager
Refactor Provider class

Using Provider separately from SessionManager
Remove ORM namespace

All files moved to Api folder
Added RequestMethod module
Configured rspec
Configure RSpec and Connection spec
Added SessionManager spec
Remove Querable concern

Also removed all its usings
Added RequestMethods spec
Remove data parameter
Added Provider spec
Remove BaseProvider
Added Hashalator and its spec
Added integration tests for Hashalator
Refactor Hashable concern

And added spec for it
Added hashing params in connection

It is very important for provider successes working
Added integration spec for listEventTypes method

Fixed bug in Hashable concern occurred when attribute value is nil
Added Parsing connection extension. Ref #12

According to new functional fixed integration spec for list_event_types
request method