Support CLUSTER commands (#2015)

* Support CLUSTER commands

* add some client tests

* remove only

* delete cluster slaves

* delete reset clietn test

* SET SLOT

* test with client

* fix fail

* Update CLUSTER_COUNTKEYSINSLOT.spec.ts

* move commands to client/commands.ts

* clusterNode

* remove CLUSTER-SET-CONFIG-EPOCH test with client

* clean code

Co-authored-by: leibale <leibale1998@gmail.com>

packages/client/lib/commands/CLUSTER_DELSLOTS.ts

@@ -0,0 +1,11 @@
+import { RedisCommandArguments } from '.';
+import { pushVerdictNumberArguments } from './generic-transformers';
+
+export function transformArguments(slots: number | Array<number>): RedisCommandArguments {
+    return pushVerdictNumberArguments(
+        ['CLUSTER', 'DELSLOTS'],
+        slots
+    );
+}
+
+export declare function transformReply(): 'OK';