Add remote info to the HLRC (#49657)

Relates to #47678

docs/java-rest/high-level/cluster/remote_info.asciidoc

@@ -0,0 +1,32 @@
+--
+:api: remote-info
+:request: RemoteInfoRequest
+:response: RemoteInfoResponse
+--
+
+[id="{upid}-{api}"]
+=== Remote Cluster Info API
+
+The Remote cluster info API allows to get all of the configured remote cluster information.
+
+[id="{upid}-{api}-request"]
+==== Remote Cluster Info Request
+
+A +{request}+:
+
+["source","java",subs="attributes,callouts,macros"]
+--------------------------------------------------
+include-tagged::{doc-tests-file}[{api}-request]
+--------------------------------------------------
+
+There are no required parameters.
+
+==== Remote Cluster Info Response
+
+The returned +{response}+ allows to retrieve remote cluster information.
+It returns connection and endpoint information keyed by the configured remote cluster alias.
+
+["source","java",subs="attributes,callouts,macros"]
+--------------------------------------------------
+include-tagged::{doc-tests-file}[{api}-response]
+--------------------------------------------------

docs/java-rest/high-level/supported-apis.asciidoc

@@ -168,12 +168,14 @@ The Java High Level REST Client supports the following Cluster APIs:
 * <<java-rest-high-cluster-put-settings>>
 * <<java-rest-high-cluster-get-settings>>
 * <<java-rest-high-cluster-health>>
+* <<java-rest-high-cluster-remote-info>>
 
 :upid: {mainid}-cluster
 :doc-tests-file: {doc-tests}/ClusterClientDocumentationIT.java
 include::cluster/put_settings.asciidoc[]
 include::cluster/get_settings.asciidoc[]
 include::cluster/health.asciidoc[]
+include::cluster/remote_info.asciidoc[]
 
 == Ingest APIs
 The Java High Level REST Client supports the following Ingest APIs: