Add integration tests to CI

[kostyazgara]

I'm submitting a...

[ ] Regression 
[ ] Bug report
[x] Feature request
[ ] Documentation issue or request
[ ] Support request => Please do not submit support request here, instead post your question on Stack Overflow.

Current behavior

We have integration tests, but they don't run on pull request

Expected behavior

Every time when new pull request created or updated we need to run integration tests alongside other jobs like format, lint. Job must be run after job build

[matviimash]

Do we need to run only those tests, which placed in integration directory?
For example: core/tests/integration

[kostyazgara]

We need to run all tests in each package directory

[matviimash]

If we need to run all tests, then will better to update description of this issue?