[CALCITE-7422] Support large plan optimization mode for HepPlanner

Key optimizations of large plan mode:

1. Reusable graph, avoid reinit.
2. Efficient traversal, skip stable subtree.
3. Fine-grained GC.

Usage: see comments of HepPlanner()

Perf result of LargePlanBenchmark:
- 10K unions (~40K nodes): ~8.8s
- 100K unions (~400K nodes): ~60.6s

Without this mode, such plans will OOM and take very long time(cannot
finish).

Author: zhuwenzhuang

core/src/main/java/org/apache/calcite/plan/AbstractRelOptPlanner.java

@@ -308,7 +308,7 @@ protected void onNewClass(RelNode node) {
     // do nothing
   }
 
-  protected void dumpRuleAttemptsInfo() {
+  public void dumpRuleAttemptsInfo() {
     if (this.ruleAttemptsListener != null) {
       RULE_ATTEMPTS_LOGGER.debug("Rule Attempts Info for " + this.getClass().getSimpleName());
       RULE_ATTEMPTS_LOGGER.debug(this.ruleAttemptsListener.dump());