Description

The following changes are made for a project validation item to ensure that each scene contains no more than 2 controller dynamic objects:

Added a (required) validation item to check the number of controller dynamic objects in a scene.
This validation item has no automatic fix action. Users must manually remove any additional dynamic object components.
Updated ItemAction to include None enum for items without a fixAction.
Implemented the UpdateProjectValidationItemMessage function for updating item's message. It checks for items containing the oldmessage and replaces it with newmessage.

Height Task ID(s) (If applicable): https://c3d.height.app/T-7856

Type of change

[ ] My changes will not interrupt or disrupt automated build processes
[x] I have checked all outgoing links (i.e. to documentation) for validity
[x] My code follows the style guidelines of this project
[x] I have performed a self-review of my own code
[x] I have commented my code, particularly in hard-to-understand areas
[N/A] I have made corresponding changes to the documentation
[x] My changes generate no new warnings
[N/A] Any dependent changes have been merged and published in downstream modules
[x] I have assigned this PR to myself in GitHub
[x] I have assigned and notified Reviewers for this PR