integration_tests/check_yaml.py: add compareYaml()
integration_tests/check_yaml.py: add compareYaml()

Compare yaml objects:
add possibility of specifying the correct value ranges in
expected object.

EXAMPLES:
// expected_file
some_key: [0, 3]  ===> OK
// observed_file
some_key: 2

// expected_file
some_key: [0, 3]  ===> :( assertion failed
// observed_file
some_key: 4

zer0main/bacteria-core,zer0main/bacteria-core,zer0main/bacteria-core