[Feature Request] FOSSA - Vulnerability + Finding Sync

[golanglemonade]

Adds a VulnerabilitySync integration for FOSSA. This should sync vulnerabilities/findings.

We want to pull issues
Vulnerabilities:

• Security Vulnerabilities - Always On
  • Pull in remediation guidance
    Findings:
• [Optional] OSS License Compliance Findings - Off By Default

The config should:

• Ability to turn on licensing findings
• Include setup for local testing

Ref:
FOSSA

[manab-pr]

@golanglemonade assign it to me.