Removed linelint and check EOL using spotless

[owaiskazi19]

Description

Since Spotless can check for end of line, went ahead and removed the extra tool for checking EOL. Also, added misc files for spotless to format.

Issues Resolved

[List any issues this PR will resolve]

Check List

• New functionality includes testing.
  • All tests pass
• New functionality has been documented.
  • New functionality has javadoc added
• Commits are signed per the DCO using --signoff
• Commit changes are listed out in CHANGELOG.md file (See: Changelog)

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.

[github-actions]

Gradle Check (Jenkins) Run Completed with:

• RESULT: FAILURE ❌
• URL: https://build.ci.opensearch.org/job/gradle-check/12385/
• CommitID: 24bfceb
  Please examine the workflow log, locate, and copy-paste the failure(s) below, then iterate to green.
  Is the failure a flaky test unrelated to your change?

[owaiskazi19]

Gradle Check (Jenkins) Run Completed with:

* **RESULT:** FAILURE ❌

* **URL:** https://build.ci.opensearch.org/job/gradle-check/12385/

* **CommitID:** [24bfceb](https://github.com/opensearch-project/OpenSearch/commit/24bfceb57ed02b993365292f20a5b3b9f84fb7a4)
  Please examine the workflow log, locate, and copy-paste the failure(s) below, then iterate to green.
  Is the failure [a flaky test](https://github.com/opensearch-project/OpenSearch/blob/main/DEVELOPER_GUIDE.md#flaky-tests) unrelated to your change?

#6658

[github-actions]

Gradle Check (Jenkins) Run Completed with:

• RESULT: FAILURE ❌
• URL: https://build.ci.opensearch.org/job/gradle-check/12387/
• CommitID: 24bfceb
  Please examine the workflow log, locate, and copy-paste the failure(s) below, then iterate to green.
  Is the failure a flaky test unrelated to your change?

[github-actions]

Gradle Check (Jenkins) Run Completed with:

• RESULT: SUCCESS ✅
• URL: https://build.ci.opensearch.org/job/gradle-check/12390/
• CommitID: c1c837f

[codecov-commenter]

Codecov Report

Merging #6657 (c1c837f) into main (497c80d) will increase coverage by 0.00%.
The diff coverage is n/a.

📣 This organization is not using Codecov’s GitHub App Integration. We recommend you install it so Codecov can continue to function properly for your repositories. Learn more

@@            Coverage Diff            @@
##               main    #6657   +/-   ##
=========================================
  Coverage     70.76%   70.76%           
+ Complexity    59165    59162    -3     
=========================================
  Files          4803     4803           
  Lines        283188   283188           
  Branches      40837    40837           
=========================================
+ Hits         200389   200396    +7     
- Misses        66344    66362   +18     
+ Partials      16455    16430   -25     

see 491 files with indirect coverage changes

Help us with your feedback. Take ten seconds to tell us how you rate us. Have a feature suggestion? Share it here.

[kotwanikunal]

Added the backport 2.x label as well.

[kotwanikunal]

Re-ran the windows precommit -

for C:\hostedtoolcache\windows\Java_Adopt_jdk\11.0.18-10\x64\bin\java.exe:[0.010s][warning][gc] Failed to reserve memory for new overflow mark stack with 4096 chunks and size 33554432B.
Error occurred during initialization of VM
Failed to allocate initial concurrent mark overflow mark stack.

[dbwiddis]

FYI, might want to audit the file extensions in this repo. I added .svg over on SDK because we have them in some of our design docs, but not sure it's needed here.

[owaiskazi19]

We do have svg here as well. Anyway, I feel it's good to have.