added some partial typings with tests for BigNumber and BitArray with codecs
hashes
exceptions
ciphers
block modes
hmac and pbkdf2
pseudo Mersenne primes
elliptic curve cryptography
random
key exchange
convenience functions
tests for codecs
tests for hashes
tests for symmetric ciphers
testes for hmac and pbdkf2
rest of the tests
renamed test file
travis, test me
package.json, publishing
readme update