Move client keygen into client.sh

multinode-demo/client.sh

@@ -20,7 +20,15 @@ usage() {
 }
 
 if [[ -z $1 ]]; then # default behavior
-  $solana_bench_tps --identity config-private/client-id.json --network 127.0.0.1:8001 --drone 127.0.0.1:9900 --duration 90 --tx_count 50000
+  mkdir -p config-client/
+  $solana_keygen -o config-client/client-id.json
+  $solana_bench_tps \
+    --identity config-client/client-id.json \
+    --network 127.0.0.1:8001 \
+    --drone 127.0.0.1:9900 \
+    --duration 90 \
+    --tx_count 50000 \
+
 else
   $solana_bench_tps "$@"
 fi