Add compiler validation through compiler plugin

[niveathika]

Purpose

$subject

Fixes:

Examples

Checklist

• Linked to an issue
• Updated the specification
• Updated the changelog
• Added tests
• Checked native-image compatibility

[codecov]

Codecov Report

Attention: Patch coverage is 84.13598% with 56 lines in your changes missing coverage. Please review.

Project coverage is 51.54%. Comparing base (b018d40) to head (cba3de2).
Report is 9 commits behind head on main.

Files with missing lines	Patch %	Lines
...b/cdc/compiler/validator/CdcFunctionValidator.java	79.35%	14 Missing and 18 partials ⚠️
...cdc/compiler/validator/CdcServiceAnalysisTask.java	74.19%	4 Missing and 4 partials ⚠️
...c/compiler/codeaction/AbstractCdcCodeTemplate.java	82.35%	3 Missing and 3 partials ⚠️
...main/java/io/ballerina/lib/cdc/compiler/Utils.java	72.22%	2 Missing and 3 partials ⚠️
...ib/cdc/compiler/validator/CdcServiceValidator.java	89.58%	2 Missing and 3 partials ⚠️

❌ Your project status has failed because the head coverage (51.54%) is below the target coverage (80.00%). You can increase the head coverage or adjust the target coverage.

Additional details and impacted files

@@              Coverage Diff              @@
##               main       #3       +/-   ##
=============================================
+ Coverage     29.23%   51.54%   +22.31%     
- Complexity       23      138      +115     
=============================================
  Files            15       26       +11     
  Lines           520      875      +355     
  Branches        129      180       +51     
=============================================
+ Hits            152      451      +299     
- Misses          364      389       +25     
- Partials          4       35       +31     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.

[ThisaruGuruge]

LGTM