Updating the unit test framework (Catch) used to the latest version

[Srivat97]

VTR uses Catch as its unit test framework. Currently, the version used by VTR is outdated (version 1), the changes in this PR upgrade Catch to the latest version. Additionally, any projects that originally used the older version of Catch were also updated to use the latest version.

Description

• The older version of Catch was removed
• The latest version of Catch was added using git subtrees
• All projects that used the older version of Catch were updated to use the newer version (this involved modifying include headers and also updating some source code that was specific to the older version of Catch)

Related Issue

This PR is related to issue https://github.com/verilog-to-routing/vtr-verilog-to-routing/issues/1909

Motivation and Context

Latest version of Catch supports newer c++ versions and also has newer features.

How Has This Been Tested?

This change has been tested by running all the unit tests and comparing the outputs with the older version of catch and making sure there were no differences.

Types of changes

• Bug fix (change which fixes an issue)
• New feature (change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• My change requires a change to the documentation
• I have updated the documentation accordingly
• I have added tests to cover my changes
• All new and existing tests passed

[vaughnbetz]

Looks good to me; thanks @Srivat97 . @kmurray, @acomodi : let me know if you have any concerns. If not I'll merge this tonight.

[vaughnbetz]

LGTM

[acomodi]

LGTM