Added filters to rule endpoints in security monitoring API

[api-clients-generation-pipeline]

See DataDog/datadog-api-spec#707

[zippolyte]

/azp run

[azure-pipelines]

Azure Pipelines successfully started running 1 pipeline(s).

[codecov]

Codecov Report

Merging #632 (9002caa) into master (5cb3b50) will decrease coverage by 0.00%.
The diff coverage is 17.43%.

Impacted Files	Coverage Δ
...datadog/model_security_monitoring_rule_response.go	4.04% <0.00%> (-0.29%)	⬇️
...g/model_security_monitoring_rule_update_payload.go	20.83% <0.00%> (-2.54%)	⬇️
...datadog/model_security_monitoring_filter_action.go	21.42% <21.42%> (ø)
...g/model_security_monitoring_rule_create_payload.go	23.14% <23.07%> (-0.01%)	⬇️
api/v2/datadog/model_security_monitoring_filter.go	23.80% <23.80%> (ø)
api/v1/datadog/api_usage_metering.go	61.91% <0.00%> (+0.07%)	⬆️
...g/model_usage_specified_custom_reports_response.go	9.52% <0.00%> (+9.52%)	⬆️