New Elasticsearch Settings

New settings introduced by this module:

transport.found.host-suffixes
A comma-separated list of host suffixes that trigger our attempt to authenticate with Elastic Cloud. Defaults to foundcluster.com,found.no.
transport.found.ssl-ports
A comma-separated list of ports that trigger our SSL support. Defaults to 9343.
transport.found.api-key
An API-key which is used to authorize this client when connecting to Elastic Cloud. API-keys are managed via the console as a list of Strings under the root level key "api_keys". Defaults to missing-api-key
transport.found.ssl.unsafe_allow_self_signed
Whether to accept self-signed certificates when using SSL. This is unsafe and allows for MITM-attacks, but may be useful for testing. Defaults to false.
transport.found.connection-keep-alive-interval
The interval in which to send keep-alive messages. Defaults to 20s. Set to 0 to disable.