[feature](nereids) dump physical tree and memo

[englefly]

Proposed changes

dump memo info and physical plan in stdout and log
set enable_nereids_trace variable true/false to open/close this dump.

following is a fragment of memo:

Group[GroupId#8]
GroupId#8(plan=PhysicalHashJoin ( type=INNER_JOIN, hashJoinCondition=[(r_regionkey#250 = n_regionkey#255)], otherJoinCondition=Optional.empty, stats=null )) children=[GroupId#6 GroupId#7 ] stats=(rows=25, isReduced=false, width=2)
GroupId#8(plan=PhysicalHashJoin ( type=INNER_JOIN, hashJoinCondition=[(r_regionkey#250 = n_regionkey#255)], otherJoinCondition=Optional.empty, stats=null )) children=[GroupId#7 GroupId#6 ] stats=(rows=25, isReduced=false, width=2)

Issue Number: close #xxx

Problem summary

Describe your changes.

Checklist(Required)

1. Does it affect the original behavior:
   • Yes
   • No
   • I don't know
2. Has unit tests been added:
   • Yes
   • No
   • No Need
3. Has document been added or modified:
   • Yes
   • No
   • No Need
4. Does it need to update dependencies:
   • Yes
   • No
5. Are there any changes that cannot be rolled back:
   • Yes (If Yes, please explain WHY)
   • No

Further comments

If this is a relatively large or complex change, kick off the discussion at dev@doris.apache.org by explaining why you chose the solution you did and what alternatives you considered, etc...

[englefly]

@morrySnow @jackwener please review

[morrySnow]

please add a debug string example in commit msg~

[github-actions]

PR approved by at least one committer and no changes requested.

[github-actions]

PR approved by anyone and no changes requested.