Support account on tmpfs via net/ scripts (bp #14459) (#14621)

* multinode-demo: Pass --accounts through bootstrap leader wrapper

(cherry picked from commit 327be55acc)

* gce.sh: Factor out default custom memory

(cherry picked from commit ddf1d2dbf5)

* net/: Support accounts on swap-backed tmpfs

(cherry picked from commit ff599ace4d)

* net/gce.sh: Add cusom RAM arg instead of doubling default with tmpfs

(cherry picked from commit 3175cf1deb)

Co-authored-by: Trent Nelson <trent@solana.com>

multinode-demo/bootstrap-validator.sh

@@ -66,6 +66,9 @@ while [[ -n $1 ]]; do
     elif [[ $1 == --expected-bank-hash ]]; then
       args+=("$1" "$2")
       shift 2
+    elif [[ $1 == --accounts ]]; then
+      args+=("$1" "$2")
+      shift 2
     else
       echo "Unknown argument: $1"
       $program --help