* Rework how a runtime api calls into the runtime
Now we generate a default implementation for each api call that calls
a generated method `method_runtime_api_impl`. This newly generated
method is the one that will be implemented by the `impl_runtime_apis`
macro in the runtime for the client side.
* Support `changed_in` to change runtime api function signatures
* Update documentation
* Fixes tests
* Implement checking the api version with a predicate
* Make the implementation backwards compatible with CC
* Update wasm files after merge
* Check for wasm runtime differences by building master and current branch
* Update spec_version and wasm files
* Fixes
* Revert my changes
* Remove `patch.crates-io` from test-runtime