Per-Commmit Provenances for Oak Trusted Runtime Binaries.

The files and folders in this branch are organized as follows:

.
|-- [BINARY_HASH_1]
|   |-- [COMMIT_HASH_A].json
|   |-- [COMMIT_HASH_B].json
|   |-- ...
|-- [BINARY_HASH_2]
|   |-- [COMMIT_HASH_C].json
|   |-- [COMMIT_HASH_D].json
|   |-- ...
|-- [BINARY_HASH_3]
|-- ...

The following questions can be answered using this structure:

Which commits produced a binary with a given hash?

$ git checkout provenance 
$ ls [BINARY_HASH]

Which binaries were produced from a given Git commit hash?

$ git diff provenance-[COMMIT_HASH]

Which binary hashes changed between commit A and B?

$ git diff provenance-[COMMIT_HASH_A] provenance-[COMMIT_HASH_B]