This reduces the output from the clusters API in the data processing stage.
Mainly, it throws away a lot of unused fields in `elasticsearch.cluster_stats` and `elasticsearch.cluster_state`
cc @rasroh
* update to eui 0.0.44
* keep eui dependency in x-pack
* wrap EuiBasic table column in span to avoid className prop from getting overridden
* remove brittle functional tests that are no longer needed with EUI components
* filter field list instead of chaning table size
* update x-pack snapshots
* [Monitoring/React] Render ES Nodes Listing with Base Controller
Refactors the ES Nodes Listing to use Base Controller and a React component instead of an Angular directive
* remove another obsolete file
This changes the Advanced Node page for Elasticsearch to recognize the
"write" threadpool, while also incorporating the deprecated "index"
threadpool and renamed "bulk" usage (renamed to "write").
This sums the three writing threadpools together and displays it as a
unified view.
