Add CardReader functionality and tests
Fix header appending to respect api key vs auth token

[#80581522]
Add CardReader functionality and tests
Fix header appending to respect api key vs auth token, not both

[#80581522]
ByteArrayOutputStream -> InputStream for CardReader uploads.
Added test to assure cards are encoded correctly.

[#80581522]
Merge pull request #11 from fullcontact/version2-working

CardReader functionality