Extension functions for GetLoginProofInvitation and GetLoginProofResult"

Closes #41

See merge request !35

Extension functions for creating and verifying VC/VP proofs

Closes #40

See merge request !34

Add proper filename during sync

Closes #32

See merge request !33

Replace LICENSE

See merge request !32

Expose prometheus metrics

Closes #38

See merge request !31

Add temporary evaluation path ending with 'did.json' for the demo

See merge request !30

Rego extension function to retrieve organization DID (issuer of proofs)

Closes #37

See merge request !29

Allow policy evalution with HTTP GET request

Closes #36

See merge request !28

Refactor policy evaluation response to allow different levels of embedding values

Closes #33

See merge request !24

This commit changes two things:
* evaluationID is no longer returned as part of the JSON response, but instead is
returned as HTTP ETag header
* if policy source code contains a single blank variable assignment then the result
from the policy evaluation will be only the value of that variable

Revert MongoDB credentials removal

See merge request !25

update

See merge request !27

Create extension function to retrieve public keys from Signer service

Closes #30

See merge request !23

update

See merge request !26

Remove explicit user/pass credentials for MongoDB

See merge request !22

init

See merge request !21