Move Kibana Usage collectors outside the telemetry plugin (#65663)

Author: afharo

.github/CODEOWNERS

@@ -162,6 +162,7 @@
 # Pulse
 /packages/kbn-analytics/ @elastic/pulse
 /src/legacy/core_plugins/ui_metric/ @elastic/pulse
+/src/plugins/kibana_usage_collection/ @elastic/pulse
 /src/plugins/telemetry/ @elastic/pulse
 /src/plugins/telemetry_collection_manager/ @elastic/pulse
 /src/plugins/telemetry_management_section/ @elastic/pulse

src/plugins/kibana_usage_collection/README.md

@@ -0,0 +1,9 @@
+# Kibana Usage Collection
+
+This plugin registers the basic usage collectors from Kibana:
+
+- Application Usage
+- UI Metrics
+- Ops stats
+- Number of Saved Objects per type
+- Non-default UI Settings

src/plugins/kibana_usage_collection/common/constants.ts

@@ -0,0 +1,47 @@
+/*
+ * Licensed to Elasticsearch B.V. under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Elasticsearch B.V. licenses this file to you under
+ * the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+export const PLUGIN_ID = 'kibanaUsageCollection';
+export const PLUGIN_NAME = 'kibana_usage_collection';
+
+/**
+ * UI metric usage type
+ */
+export const UI_METRIC_USAGE_TYPE = 'ui_metric';
+
+/**
+ * Application Usage type
+ */
+export const APPLICATION_USAGE_TYPE = 'application_usage';
+
+/**
+ * The type name used within the Monitoring index to publish management stats.
+ */
+export const KIBANA_STACK_MANAGEMENT_STATS_TYPE = 'stack_management';
+
+/**
+ * The type name used to publish Kibana usage stats.
+ * NOTE: this string shows as-is in the stats API as a field name for the kibana usage stats
+ */
+export const KIBANA_USAGE_TYPE = 'kibana';
+
+/**
+ * The type name used to publish Kibana usage stats in the formatted as bulk.
+ */
+export const KIBANA_STATS_TYPE = 'kibana_stats';

src/plugins/kibana_usage_collection/kibana.json

@@ -0,0 +1,10 @@
+{
+  "id": "kibanaUsageCollection",
+  "version": "kibana",
+  "server": true,
+  "ui": false,
+  "requiredPlugins": [
+    "usageCollection"
+  ],
+  "optionalPlugins": []
+}