Add intellij project files to ignore list
Initial commit for nbis-helper, unify NISTLib and NBISHelper
Add complete getters for various fields in type 1, 2, and 4 record.
Mothods cleaning in NISTData class.
Modified NBISHelper to use the new getters.
Update getters name to match with DemographicKey
Fix mugshot image extraction, re-encode image as JPEG to fix corrupted image problem on some NIST file
Add some basic logging warning / error in case of exception