style: code formatting and checks in the CI

[azlekov]

New Pull Request Checklist

• [x] I am not disclosing a vulnerability.
• [x] I am creating this PR in reference to an issue.

Issue Description

Related issue: #1119

Approach

Added Spotless formatter for most types of files in the project (eg. .java, .kt, .xml, .gradle). Spotless is configured to use ktlint for Kotlin and Google Code Style AOSP for Java.

TODOs before merging

• [ ] Add tests
• [x] Add changes to documentation (guides, repository pages, in-code descriptions)
• [x] A changelog entry is created automatically using the pull request title (do not manually add a changelog entry)

[parse-github-assistant[bot]]

Thanks for opening this pull request!

• 🎉 We are excited about your hands-on contribution!

[codecov[bot]]

Codecov Report

Merging #1120 (7d10d58) into master (dd9a9e6) will increase coverage by 0.21%. The diff coverage is 65.51%.

@@             Coverage Diff              @@
##             master    #1120      +/-   ##
============================================
+ Coverage     65.06%   65.28%   +0.21%     
- Complexity     2208     2218      +10     
============================================
  Files           122      122              
  Lines          9463     9957     +494     
  Branches       1317     1337      +20     
============================================
+ Hits           6157     6500     +343     
- Misses         2799     2945     +146     
- Partials        507      512       +5     

Impacted Files	Coverage Δ
.../src/main/java/com/parse/CacheQueryController.java	5.76% <0.00%> (-1.05%)	:arrow_down:
...c/main/java/com/parse/KnownParseObjectDecoder.java	50.00% <ø> (ø)
parse/src/main/java/com/parse/Lists.java	90.00% <ø> (ø)
parse/src/main/java/com/parse/LocalIdManager.java	68.00% <0.00%> (ø)
...arse/src/main/java/com/parse/LocationNotifier.java	0.00% <0.00%> (ø)
parse/src/main/java/com/parse/LockSet.java	0.00% <0.00%> (ø)
...arse/src/main/java/com/parse/NoObjectsEncoder.java	75.00% <ø> (ø)
parse/src/main/java/com/parse/Numbers.java	19.51% <ø> (ø)
...rc/main/java/com/parse/OfflineQueryController.java	100.00% <ø> (ø)
parse/src/main/java/com/parse/PLog.java	76.66% <ø> (ø)
... and 148 more

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[azlekov]

@mtrezza this is now done. Pipeline will fail if the source code is not formatting well. I have update the CONTRIBUTING.md so newcomers are guided what to run to eliminate ping-pong. All the source code is formatted to Google AOSP style guide for Java and ktlint for Kotlin.

[azlekov]

@mtrezza whenever your okay and ready feel free to merge.

[mobilekosmos]

Cannot commit in Android Studio after this changes:

Running spotless check > Task :spotlessJava > Task :spotlessJavaApply > Task :spotlessKotlin FAILED Step 'ktlint' found problem in 'ktx\src\main\java\com\parse\ktx\ParseQuery.kt': Error on line: 4, column: 1 Wildcard import java.lang.AssertionError: Error on line: 4, column: 1 Wildcard import at

[parseplatformorg]

🎉 This pull request has been released in version 2.0.1

[parseplatformorg]

🎉 This pull request has been released in version 2.0.1

[parseplatformorg]

🎉 This pull request has been released in version 2.0.1