* Implement MPT preinitialization
* Apply comments
* Replace GlobalMetadata reads with stores in the kernel
* Change memory specs
* Remove trie data length as a prover input
* Fix interpreter, turn syscall opcodes into actual syscalls, create interpreter test for add11
* Rename test_add11 to test_add11_yml
* Apply comments
* Cleanup add11_yml interpreter test
* Make stack_top() return a Result, and remove Result from add11_yml test
* Apply comment