Update collector to use common data types from telemetry-exporter

[shaun-nx]

Proposed changes

This PR integrates the common Data structure defined in nginx/telemetry-exporter#27 to allow NIC to generate its Schema.

This PR also adds two go generate annotations to the Data and NICResourceCounts structs to generate the required Attributes function. This ensures the data is of type Exportable

Checklist

Before creating a PR, run through this checklist and mark each as complete.

• I have read the CONTRIBUTING doc
• I have added tests that prove my fix is effective or that my feature works
• I have checked that all unit tests pass after adding my changes
• I have updated necessary documentation
• I have rebased my branch onto main
• I will ensure my PR is targeting the main branch and pulling from my branch from my own fork