verify_proof/4 checks that a solution is a valid solution it doesn't check
it against any target.
get_target/2 returns the target of a solution in integer form
(not scientific).
When config is created, it accepts binaries that are converted to list
and kept in config record. This causes issues in the code that uses this
project as a dependency. There is a different type for exec and extra_args
outside and inside the config record.
aecuckoo_SUITE is moved from aecuckoo to aeminer
To make the suite pass:
- siphash24 module was taken from ae node
- enacl has become a dep of aeminer (due to blake2b_256 hash)
