Provide isCompressed key methods
Test isCompressed
Fixed typo in WSCoinbaseScript isEqual

Always true condition.
Added keys isEqual
BIP38 stubs
.
BIP38 tests stub
Import key classes in public header
Error words on unrecognized magics
Fixed typo
Assert args in private method
Basic BIP38 key construction
BIP38 "works"

FIXME: missing EC encryption
TODO: credit breadwallet
BIP38 non-EC test vectors
Prepared for EC encryption
BIP38 EC test vectors (no encryption)
Breadwallet credit for BIP38
Comment on BIP38 network distinction
BIP38 macros
BIP38 in public header