Add project: OpenTelemetry Collector

[MattTheCuber]

Basic info

Closes #250

Project name: OpenTelemetry Collector
Project link: https://github.com/open-telemetry/opentelemetry-collector

Qualifications

ZeroVer's patent-pending zero-based versioning
scheme can obviously be used by everyone, but not every usage is
necessarily notable. Check that the first and at least one other
criterion apply:

• A current ZeroVer-compliant version (0.*) or long history of ZeroVer usage, and
• Very wide exposure (i.e., 1,000+ GitHub stars), or
• Active promotion as part of a paid product or service (e.g., Hashicorp Vault), or
• Relative maturity and infrastructural importance (e.g., Compiz, docutils)

Additional notability info

See #250

Citation info

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