Protect window operator by circuit breaker

[dai-chen]

Issue #, if available: #1009

Description of changes: Protect window operator to avoid preload too many data into memory in worst case mentioned here: https://github.com/opendistro-for-elasticsearch/sql/blob/develop/docs/dev/AggregateWindowFunction.md#33-performance

1. Wrap window operator's input node by resource monitor
2. Check resource usage on every 1000 calls on next()

Testing: Add UT to verify the behavior as expected. Load test will be done separately later.

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[codecov]

Codecov Report

Merging #1006 (9b74809) into develop (df61641) will increase coverage by 0.00%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             develop    #1006   +/-   ##
==========================================
  Coverage      99.87%   99.87%           
- Complexity      2403     2409    +6     
==========================================
  Files            234      234           
  Lines           5520     5527    +7     
  Branches         357      358    +1     
==========================================
+ Hits            5513     5520    +7     
  Misses             5        5           
  Partials           2        2           

Impacted Files	Coverage Δ	Complexity Δ
...tor/protector/ElasticsearchExecutionProtector.java	100.00% <100.00%> (ø)	20.00 <5.00> (+3.00)
...search/executor/protector/ResourceMonitorPlan.java	100.00% <100.00%> (ø)	10.00 <4.00> (+3.00)

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