feat: implement recursive placeholder resolution in Default parameters

[AshokThangavel]

Support Recursive Placeholder Resolution in Module Parameter

Description

This PR introduces deeply nested variables or chained configuration settings where one ${variable} depends on another.
with a safety handle complex dependencies and prevent infinite loops in the case of circular references.

fixes: #1009

Changes

• Recursive Logic: Updated ResolvePlaceholders to use a while loop that continues as long as substitutions are being made.
• Efficiency: The loop exits immediately if a pass results in no changes, ensuring no performance penalty for simple configurations.

Testing Performed

1. Unit Tests: Verified with complex nested strings:

• ${A} -> ${B} -> ${C} -> FinalValue.

2. Integration Test: Added a new integration test class Test.PM.Integration.Module that:

• Generates a module.xml from XData.
• Writes it to the filesystem.
• Executes an IPM load command to verify the full lifecycle of the variable resolution.

Test Execution Results: Test.PM.Integration.Module

Counter	Action	Status	Description
1	LogMessage	passed	start Loading the demo-module1 module
2	AssertStatusOK	passed	Directory created /home/irisowner/zpm/tests/integration_tests/Test/PM/Integration/_data/varresolver/
3	AssertStatusOK	passed	module.xml File created on /home/irisowner/zpm/tests/integration_tests/Test/PM/Integration/_data/varresolver/
4	AssertStatusOK	passed	Created the xml file on /home/irisowner/zpm/tests/integration_tests/Test/PM/Integration/_data/varresolver/
5	AssertStatusOK	passed	Loaded varresolver module successfully from /home/irisowner/zpm/tests/integration_tests/Test/PM/Integration/_data/varresolver/
6	AssertTrue	passed	Module demo-module1 exists in IPM and version is 1.0.0
7	LogMessage	passed	List all modules
8	AssertStatusOK	passed	uninstalled module demo-module1 successfully.
9	AssertStatusOK	passed	Deleted the module.xml file from /home/irisowner/zpm/tests/integration_tests/Test/PM/Integration/_data/varresolver/
10	LogMessage	passed	Duration of execution: 1.193466 sec.