Implement new stand dump tool for virtual threads

[ravinperera00]

Purpose

The current strand dump tool uses the information provided by the Strand class to generate the information needed for the dump. However, with the switch to virtual threads, a new method has to be developed to obtain the relevant information.

Fixes #43292
Contributes to #43351

Approach

Design and details of the new implementation are discussed here (#42879)
The design of the previous strand dump tool can be found here (#36284)

The format of the previous strand dump tool has been preserved as much as possible but information related to strand groups has been removed as it is deemed unnecessary with the move to Java 21.

Remarks

Providing the state of the strand (Ex: RUNNABLE, WAITING) is yet to be implemented as the state of a virtual thread is not provided in the thread dump file. Separate logic has to be included within the tool to analyse the stack traces to find ways of predicting the state of each strand.
The PR also changes the Strand Dump tests appropriately to match the new design.

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

[warunalakshitha]

LGTM