* Make metadata serializable
* Refactor tests to use steps
* Add a balance assertion test step
* Test balance deserialization
* Box the test steps
* Permit size difference in step output
* Add support for wrapper types
* Move `FilesWithExtensionIterator` to `core::common`
* Remove unneeded use of two `HashMap`s
* Make metadata structs more typed
* Impl new_from for wrapper types
* Implement the new input handling logic
* Fix edge-case in input handling
* Ignore macro doc comment tests
* Correct comment
* Fix edge-case in deployment order
James Wilson