Move threat model doc to GitHub

Move threat model doc to GitHub
Think you should apply the STRIDE model to each interaction. So for the interaction covering the agent sending logs and other info to the server. If the App server is compromised

| Spoofing | Tampering | Repudiation | Information Disclosure | Denial of Service | Elevation of Privilege | 
|--------------|:----------------|:-----------------|:-------------------------------|:-----------------------|:-----------------|
| no | yes | yes | yes | yes | no |