AMBARI-25457 Hive 3 Grafana dashboards showing outdated metrics

[payert]

Some of the metrics' name has been changed in Hive 3.
Due to this change many graphs shows no data on Hive Home, HiveServer2
and HiveMetastore dashboards.

What changes were proposed in this pull request?

Suggested changes:

HiveSever2
The default.General.api_get_all_databases and default.General.api_get_partitions_by_names metrics are not provided by HiveServer2 anymore - only by HiveMetastore - so the "API Times" row with the two charts has been removed.

Hive Metastore

Original Name	New Name
default.General.api_get_all_databases_75thpercentile	default.General.api_get_databases_75thpercentile
default.General.api_get_all_databases_999thpercentile	default.General.api_get_databases_999thpercentile
default.General.memory.heap.max	default.General.heap.max
default.General.memory.heap.used	default.General.heap.used
default.General.memory.heap.committed	default.General.heap.committed
default.General.memory.non-heap.max	default.General.non-heap.max
default.General.memory.non-heap.used	default.General.non-heap.used
default.General.memory.non-heap.committed	default.General.non-heap.committed

Hive Home

Original Name	New Name
default.General.init_total_count_db	default.General.total_count_dbs
default.General.init_total_count_tables	default.General.total_count_tables
default.General.init_total_count_partitions	default.General.total_count_partitions
default.General.api_create_table_count	api_create_table_req_count
default.General.memory.heap.max	default.General.heap.max
default.General.memory.heap.used	default.General.heap.used
default.General.memory.heap.committed	default.General.heap.committed
default.General.memory.non-heap.max	default.General.non-heap.max

How was this patch tested?

A cluster with Ambari 2.7.5 was upgraded to the version containing this change and manual validation of the three affected Hive dashboards was done.

[hapylestat]

lgtm+1