Cat api: added node id column to _cat/plugins response

relates to #10226

rest-api-spec/test/cat.plugins/10_basic.yaml

@@ -0,0 +1,16 @@
+---
+"Help":
+  - do:
+      cat.plugins:
+        help: true
+
+  - match:
+      $body: |
+               /^   id          .+   \n
+                    name        .+   \n
+                    component   .+   \n
+                    version     .+   \n
+                    type        .+   \n
+                    url         .+   \n
+                    description .+   \n
+               $/

src/main/java/org/elasticsearch/rest/action/cat/RestPluginsAction.java

@@ -77,6 +77,7 @@ public class RestPluginsAction extends AbstractCatAction {
     Table getTableWithHeader(final RestRequest request) {
         Table table = new Table();
         table.startHeaders();
+        table.addCell("id", "default:false;desc:unique node id");
         table.addCell("name", "alias:n;desc:node name");
         table.addCell("component", "alias:c;desc:component");
         table.addCell("version", "alias:v;desc:component version");
@@ -96,6 +97,7 @@ public class RestPluginsAction extends AbstractCatAction {
 
             for (PluginInfo pluginInfo : info.getPlugins().getInfos()) {
                 table.startRow();
+                table.addCell(node.id());
                 table.addCell(node.name());
                 table.addCell(pluginInfo.getName());
                 table.addCell(pluginInfo.getVersion());

src/main/java/org/elasticsearch/rest/action/cat/RestSegmentsAction.java

@@ -88,7 +88,7 @@ public class RestSegmentsAction extends AbstractCatAction {
         table.addCell("shard", "default:true;alias:s,sh;desc:shard name");
         table.addCell("prirep", "alias:p,pr,primaryOrReplica;default:true;desc:primary or replica");
         table.addCell("ip", "default:true;desc:ip of node where it lives");
-        table.addCell("id", "default:false;desc:unique id node where it lives");
+        table.addCell("id", "default:false;desc:unique id of node where it lives");
         table.addCell("segment", "default:true;alias:seg;desc:segment name");
         table.addCell("generation", "default:true;alias:g,gen;text-align:right;desc:segment generation");
         table.addCell("docs.count", "default:true;alias:dc,docsCount;text-align:right;desc:number of docs in segment");