[Debugger] Add support for restart requests

[NipunaRanasinghe]

Purpose

This PR

• implements support for Restart requests in the Ballerina debug server.
• adds required integration tests

Here's a quick glance of the new feature, where the debug server manages restart requests and handle new debug sessions using the same server instance.

Screen.Recording.2024-12-04.at.13.47.24.mov

Resolves #43679

Check List

• Read the Contributing Guide
• Updated Change Log
• Checked Tooling Support (#)
• Added necessary tests
  • Unit Tests
  • Spec Conformance Tests
  • Integration Tests
  • Ballerina By Example Tests
• Increased Test Coverage
• Added necessary documentation
  • API documentation
  • Module documentation in Module.md files
  • Ballerina By Examples

[codecov]

Codecov Report

Attention: Patch coverage is 75.00000% with 26 lines in your changes missing coverage. Please review.

Project coverage is 77.41%. Comparing base (d1ff889) to head (54af2c2).
Report is 16 commits behind head on master.

Files with missing lines	Patch %	Lines
...lerinalang/debugadapter/JBallerinaDebugServer.java	62.29%	20 Missing and 3 partials ⚠️
.../ballerinalang/debugadapter/JDIEventProcessor.java	86.36%	1 Missing and 2 partials ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             master   #43686      +/-   ##
============================================
+ Coverage     77.39%   77.41%   +0.01%     
- Complexity    58578    58599      +21     
============================================
  Files          3445     3445              
  Lines        219050   219093      +43     
  Branches      28961    28959       -2     
============================================
+ Hits         169538   169604      +66     
+ Misses        40093    40063      -30     
- Partials       9419     9426       +7     

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