Improving mocking

Mocking needs to be added to:

1. deal with manual testing scenarios and record the result. Those results should be replayed even if integration mode is enabled (INTEGRATION_TESTS="yes")
2. deal with running the same query several times in a test when the result is different.

Some needed variables:

1. MOCK_NO_RECORD="yes" means there will be no record and the full command is executed
2. INTEGRATION_TESTS="yes" does not use any test cache and runs the test against a real server
3. IS_MOCK_STATIC="yes" means the test will never be run against a real server once recorded (for manual test case setup scenarios)
4. order of precedence is MOCK_NO_RECORD > IS_MOCK_STATIC > INTEGRATION_TESTS