[Spotless] Applying Google Code Format for ppl files #12

[MitchellGale]

Description

Applies spotless for ppl directory in project. Sets checkstyle to not fail on failure for ppl directory.

Issues Resolved

opensearch-project#1101

Check List

• New functionality includes testing.
  • All tests pass, including unit test, integration test and doctest
• New functionality has been documented.
  • New functionality has javadoc added
  • New functionality has user manual doc added
• Commits are signed per the DCO using --signoff

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.
For more information on following Developer Certificate of Origin and signing off your commits, please check here.

[codecov]

Codecov Report

Merging #339 (e68a194) into integ/sl_GoogleJavaFormat12 (5381a6f) will increase coverage by 1.06%.
The diff coverage is 100.00%.

❗ Current head e68a194 differs from pull request most recent head e6a35a5. Consider uploading reports for the commit e6a35a5 to get more accurate results

@@                        Coverage Diff                        @@
##             integ/sl_GoogleJavaFormat12     #339      +/-   ##
=================================================================
+ Coverage                          97.51%   98.58%   +1.06%     
+ Complexity                          4656     4176     -480     
=================================================================
  Files                                408      335      -73     
  Lines                              11930    10296    -1634     
  Branches                             829      695     -134     
=================================================================
- Hits                               11634    10150    -1484     
+ Misses                               289      141     -148     
+ Partials                               7        5       -2     

Flag	Coverage Δ
sql-engine	98.58% <100.00%> (+1.06%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files Changed	Coverage Δ
...opensearch/sql/ppl/parser/AstStatementBuilder.java	83.33% <ø> (ø)
...opensearch/sql/ppl/utils/UnresolvedPlanHelper.java	100.00% <ø> (ø)
...c/main/java/org/opensearch/sql/ppl/PPLService.java	100.00% <100.00%> (ø)
.../org/opensearch/sql/ppl/antlr/PPLSyntaxParser.java	100.00% <100.00%> (ø)
...org/opensearch/sql/ppl/domain/PPLQueryRequest.java	100.00% <100.00%> (ø)
...rg/opensearch/sql/ppl/domain/PPLQueryResponse.java	100.00% <100.00%> (ø)
...java/org/opensearch/sql/ppl/parser/AstBuilder.java	100.00% <100.00%> (ø)
...pensearch/sql/ppl/parser/AstExpressionBuilder.java	100.00% <100.00%> (ø)
.../org/opensearch/sql/ppl/utils/ArgumentFactory.java	100.00% <100.00%> (ø)
...ensearch/sql/ppl/utils/PPLQueryDataAnonymizer.java	100.00% <100.00%> (ø)

... and 75 files with indirect coverage changes

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