Merge branch 'develop'

- Add PKCS #11 key store module
- Add TPM 2.0 key store module
- Decouple key and certificate backends from CA and each other
- Complete initial key and certificate store implementations
- Create IAK, IDevID keys and certificates
- Generate, sign & verify TCG-CSR-IDEVID compliant CSR
- Add TCG specific OIDs to generated certificates
- Add Trusted Platform custom OIDs for key store types
- Introduce initial docker support
- Introduce initial yubikey support
- Clean up documentation
- Add man pages for all currently implemented CLI commands
- Create CHANGELOG
- Version bump

Author: jeremyhahn

.gitignore

@@ -1,4 +1,4 @@
-trusted-platform
+/trusted-platform
 **/*.pb.go
 **/*.log
 **/*.bin
@@ -21,4 +21,6 @@ attestation/attestor/config.yaml
 attestation/verifier/trusted-data
 attestation/verifier/logs
 attestation/verifier/config.yaml
-python-venv/
+python-venv/
+tpadm
+config.yaml