[PF-79] Variables with no init values referenced in arcs will cause arcs not to load

[camperko]

Description

Fix loading arcs where referenced data had non integer init values

Fixes PF-79

Dependencies

No new dependencies were introduced

Third party dependencies

No new dependencies were introduced

Blocking Pull requests

There are no dependencies on other PR

How Has Been This Tested?

Manually tested in local dev env in running application

Name	Tested on
OS	Linux Mint 21
Runtime	Node 20.13.1
Dependency Manager	npm 10.8.0
Framework version	Angular 13.3.1
Run parameters
Other configuration

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• My changes have been checked with @...
• I have commented my code, particularly in hard-to-understand areas
• I have resolved all conflicts with the target branch of the PR
• I have updated and synced my code with the target branch
• I have added tests that prove my fix is effective or that my feature works
• New and existing tests pass locally with my changes:
  • Lint test
  • Unit tests
  • Integration tests
• I have checked my contribution with code analysis tools:
  • SonarCloud
  • Snyk
• I have made corresponding changes to the documentation:
  • Developer documentation
  • User Guides
  • Migration Guides

[mazarijuraj]

This line is also used in Builder, please refactor it into two static functions of ImportUtils. One for the whole line and one for just the regex test because it is also used separately in Builder.

[mazarijuraj]

Also should work with values like "1.0"