* Implemented parseDERLax signature parsing and bumped bouncy castle version to most recent
* implemented using iterators
* Factored out common functionality and added comments, it is readable now! Deleted C-like version in place of this one after property based tests showed them to be equivalent
* Made compatible with scala 2.12
* Make compatible with scala 2.11
* Added tests for lax DER signatures
* Added crypto project and decoupled BitcoinSLogger from NetworkElement
Decoupled BitcoinSLogger from Factory
Moved NetworkElement into crypto project
Moved Factory and BitcoinSUtil (renamed to BytesUtil) to crypto project
Moved MaskedToString to crypto project
Added BytesUtil to imports and cleaned up CryptoUtil.recoverPoint
Moved the rest of crypto stuff to the crypto project
Moved crypto tests to crypto-test project
* Added documentation for crypto project