net/ testnet nodes now stake more lamports (#3812)

* Add --bootstrap-leader-lamports

* Generalize --no-stake into --stake NUM

* Use a large stake for net/ fullnodes

* Setup vote account before starting fullnode to avoid mixed log output

net/remote/remote-sanity.sh

@@ -133,7 +133,7 @@ echo "--- $entrypointIp: validator sanity"
 if $validatorSanity; then
   (
     set -x -o pipefail
-    timeout 10s ./multinode-demo/fullnode-x.sh --no-stake \
+    timeout 10s ./multinode-demo/fullnode-x.sh --stake 0 \
       "$entrypointRsyncUrl" \
       "$entrypointIp:8001" 2>&1 | tee validator-sanity.log
   ) || {