Fix #3394: Ktlint Custom RuleSet

[manas-yu]

Fix: #3394
This PR introduces two key features:

• Custom Ruleset Provider: A new custom ruleset provider is implemented, allowing the integration of custom Ktlint rules.

• KDocFormatRule: The KDocFormatRule is added to enforce correct closing syntax in KDoc comments.

To create the JAR file for the custom ruleset:
gradlew.bat :utility:customRulesJar

Use the custom ruleset with Ktlint by executing:
ktlint --ruleset=../oppia-android-tools/custom-ktlint-rules.jar "path/to/file"

Essential Checklist

• The PR title and explanation each start with "Fix #bugnum: " (If this PR fixes part of an issue, prefix the title with "Fix part of #bugnum: ...".)
• Any changes to scripts/assets files have their rationale included in the PR explanation.
• The PR follows the style guide.
• The PR does not contain any unnecessary code changes from Android Studio (reference).
• The PR is made from a branch that's not called "develop" and is up-to-date with "develop".
• The PR is assigned to the appropriate reviewers (reference).

[manas-yu]

@adhiamboperes PTAL, i will integrate the custom rules into scripts too.
please review and tell if there is anything else to do.