[FEATURE] CreateIndexMappings API - add support for index pattern

[petardz]

Is your feature request related to a problem?
CreateIndexMappings API now supports only concrete index as index_name parameter.

What solution would you like?
We need to be able to pass index pattern as index_name parameter.

For example:

{
    "index_name": "my_index*",
    "rule_topic": "netflow"
}

fixes #217