Add possibility to work with command line tool

[AlexeySanko]

According pylint-dev/pylint#1763 PyLint doesn't support Python<3.4 since 2.0.0. We should add property pylint_use_command_line_tool for usage command line tool instead of Python import usage. It will provide possibility to use PyLint with Python3 into parallel for Python2 projects.
PS. Do not forget to remove project.depends_on('pylint') and add assert check (command line tool or import according property pylint_use_command_line_tool).

Like https://github.com/pybuilder/pybuilder/blob/master/src/main/python/pybuilder/plugins/python/pylint_plugin.py#L35

@after("prepare")
def check_pylint_availability(logger):
    logger.debug("Checking availability of pylint")
    assert_can_execute(("pylint", ), "pylint", "plugin python.pylint")
    logger.debug("pylint has been found")