Add runtime configuration validation

[ofek]

What does this PR do?

Adds config models from #8675

[hithwen]

/azp run

[azure-pipelines]

Azure Pipelines successfully started running 2 pipeline(s).

[hithwen]

Fails on windows:

================================== FAILURES ===================================
____________________________ test_filters_not_map _____________________________
tests\test_config.py:50: in test_filters_not_map
    dd_run_check(check)
..\datadog_checks_dev\datadog_checks\dev\plugin\pytest.py:218: in run_check
    raise Exception('\n'.join(exc_lines))
E   Exception: 
E   Traceback (most recent call last):
E     File "d:\a\1\s\datadog_checks_base\datadog_checks\base\checks\base.py", line 971, in run
E       initialization()
E     File "d:\a\1\s\datadog_checks_base\datadog_checks\base\checks\base.py", line 396, in load_configuration_models
E       instance_config = self.load_configuration_model(package_path, 'InstanceConfig', raw_instance_config)
E     File "d:\a\1\s\datadog_checks_base\datadog_checks\base\checks\base.py", line 436, in load_configuration_model
E       raise_from(ConfigurationError('\n'.join(message_lines)), None)
E     File "<string>", line 3, in raise_from
E   datadog_checks.base.errors.ConfigurationError: Detected 1 error while loading configuration model `InstanceConfig`:
E   filters
E     value is not a valid dict

During handling of the above exception, another exception occurred:
tests\test_config.py:50: in test_filters_not_map
    dd_run_check(check)
E   AssertionError: Regex pattern 'The `filters` option must be a mapping.' does not match '\nTraceback (most recent call last):\n  File "d:\\a\\1\\s\\datadog_checks_base\\datadog_checks\\base\\checks\\base.py", line 971, in run\n    initialization()\n  File "d:\\a\\1\\s\\datadog_checks_base\\datadog_checks\\base\\checks\\base.py", line 396, in load_configuration_models\n    instance_config = self.load_configuration_model(package_path, \'InstanceConfig\', raw_instance_config)\n  File "d:\\a\\1\\s\\datadog_checks_base\\datadog_checks\\base\\checks\\base.py", line 436, in load_configuration_model\n    raise_from(ConfigurationError(\'\\n\'.join(message_lines)), None)\n  File "<string>", line 3, in raise_from\ndatadog_checks.base.errors.ConfigurationError: Detected 1 error while loading configuration model `InstanceConfig`:\nfilters\n  value is not a valid dict'.
============================== warnings summary ===============================

[codecov]

Codecov Report

Merging #9006 (46443fa) into master (a5389f9) will decrease coverage by 0.01%.
The diff coverage is 100.00%.

Flag	Coverage Δ
win32_event_log	86.03% <100.00%> (-1.97%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
...nt_log/datadog_checks/win32_event_log/constants.py	100.00% <ø> (ø)
win32_event_log/tests/test_config.py	100.00% <ø> (ø)
..._event_log/datadog_checks/win32_event_log/check.py	82.14% <100.00%> (-2.32%)	⬇️
...vent_log/datadog_checks/win32_event_log/filters.py	95.00% <100.00%> (-5.00%)	⬇️
win32_event_log/tests/test_filters.py	100.00% <100.00%> (ø)
...g_checks/win32_event_log/legacy/win32_event_log.py	69.76% <0.00%> (ø)