HTTP API: Batch Endpoints For Rule Engine

[rnovatorov]

Split from #28.

See:

• https://v3.developers.enapter.com/reference/http/rule_engine/#batch-disable-rules
• https://v3.developers.enapter.com/reference/http/rule_engine/#batch-enable-rules
• https://v3.developers.enapter.com/reference/http/rule_engine/#batch-delete-rules