ADD: add dump flow and documentation on tests building

[T-K-233]

This PR addresses #2049.

README documentation is added in tests folder to demonstrate usage of the CMake command. A general usage example can also be found in the header of CMakeLists.txt itself.

The <test_name>-dump commands and dump command are added to the CMake flow to enable generation of disassembly files of the tests.

The script is removed since it creates unnecessary overhead in the build flow. User should use the cmake commands directly and build the desired target.

Related PRs / Issues:

Type of change:

• Bug fix
• New feature
• Other enhancement

Impact:

• RTL change
• Software change (RISC-V software)
• Build system change
• Other

Contributor Checklist:

• Did you set main as the base branch?
• Is this PR's title suitable for inclusion in the changelog and have you added a changelog:<topic> label?
• Did you state the type-of-change/impact?
• Did you delete any extraneous prints/debugging code?
• Did you mark the PR with a changelog: label?
• (If applicable) Did you update the conda .conda-lock.yml file if you updated the conda requirements file?
• (If applicable) Did you add documentation for the feature?
• (If applicable) Did you add a test demonstrating the PR?

• (If applicable) Did you mark the PR as Please Backport?

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[jerryz123]

Thank you.