* add types and beginnings of signature utils
* add proof serialization
* serialisation of proof data + signature operation
* add serialization type for invoice proof + separate bin wrapper version
* add witness data + serializion to invoice payment proof, insert verfication functions in place in order to begin verification testing
* tests and infrastructure in place for validation
* verification of promise sig
* added verification of promise signature, infrastructure up to the point where a signature must be subtracted
* attempting to figure out differences between recipient nonce that's getting stored and calculated recipient nonce
* implementation of witness verification function, retrieve relevant values and re-validate derived recipient partial signature
* move stored portion of invoice proof into core types for storage, need to rename invoice proof
* define/refine the stored portion of payment proofs type 2?
* Folding all proof data into tx log entry storage
* back to importing master
* remove cargo files from diffs
* remove a lot of extra debug output
* return proof witness as part of proof retrieval, define json serialization of invoice proof + witness fields
* finish adding verification steps to foreign API
* remove redundant promise sig field
* move lcation of sign/verify calls
* Replace Azure Pipelines with Github Actions (#688)
* Update CI Badge on README.MD (#690)
* Trigger CI on push and pull request (#693)
* Update versioning to 5.2.0-beta.1 against grin 5.2.0-beta.3 (#691)
* update versioning to 5.2.0-beta.1 against grin 5.2.0-beta.3
* tweak for CI trigger
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Co-authored-by: Quentin Le Sceller <q.lesceller@gmail.com>
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Co-authored-by: Quentin Le Sceller <q.lesceller@gmail.com>
