PoC: CMCD v2 parameters

[cotid-qualabs]

Summary of Changes

This pull request introduces comprehensive support for CMCD v2 Parameters, focusing on enabling manifest-driven configuration of reporting targets. It adds new data structures and parsing logic to interpret CMCD v2 elements within DASH manifests.

Highlights

• CMCD v2 Implementation: Includes full implementation of CMCD v2 functionality, enabling advanced client-side data reporting capabilities.
• Manifest-Driven Reporting Targets: Introduction of ReportingTargets and EventTarget elements in DASH manifests, allowing CMCD reporting configurations to be defined directly within the manifest.
• New EventTarget Class: A dedicated EventTarget class is added to encapsulate the properties of each CMCD reporting destination, including URL, mode, keys, and events.
• Configuration Priority Update: CMCD configuration now prioritizes settings defined in the manifest over application-level settings for reporting targets, providing greater flexibility.

[gemini-code-assist]

Code Review

This pull request introduces support for CMCD v2 parameters, specifically EventTarget and ReportingTargets. It includes a new EventTarget class, updates DashConstants and DashParser to recognize these new elements, and modifies CMCDParameters to parse them from the manifest. Additionally, CmcdPropertyMap and CmcdConfigAccessor have been updated to correctly prioritize and retrieve CMCD v2 target-specific properties from both manifest and player settings. A new function getEventTargetsFromCmcdParameters has been added to CmcdModel to expose these targets.