Combine x_error & y_error into one for cp2

[MishkaMN]

PR Details

Description

The analysis for track fusion accuracy is better done by combining the x_error and y_error from previous script. Now it just gets the euclidean distance error using the the two.

Related GitHub Issue

NA

Related Jira Key

https://usdot-carma.atlassian.net/browse/CDAR-876

Motivation and Context

VRU verification testing data analysis

How Has This Been Tested?

Sim PC 1

Types of changes

• [ ] Defect fix (non-breaking change that fixes an issue)
• [X] New feature (non-breaking change that adds functionality)
• [ ] Breaking change (fix or feature that cause existing functionality to change)

Checklist:

• [X] I have added any new packages to the sonar-scanner.properties file
• [ ] My change requires a change to the documentation.
• [X] I have updated the documentation accordingly.
• [X] I have read the CONTRIBUTING document.
• [X] I have added tests to cover my changes.
• [X] All new and existing tests passed.