Adding new data quality functions from osDQ

Following functions have been added into osdq-core for integration with teiid.

String functions :

// Encrypting a string using key and AES encryption
String encrypt ( String val, String key)
String decrypt ( String val, String key)

// Fuzzy distance - similarity between two strings
float levestheindistance ( String a, String b)
float jarowinklerdistance( String a , String b)
float cosinedistance (String a, String b)

// Format check for PII ( personal information)
boolean isCreditCardFormat(String a)
boolean isSSNFormat(String a)
boolean isPhoneFormat(String a)
boolean isEmailFormat(String a)
boolean hasWhiteSpace(String a )

Date Functions

// converting date into universal recognized format
long dateToEpoch(java.util.Date date)
Date epochToDate(long epoch)
Date epochToDate(long epoch, String TimeZone)
long diffInSec(date a, date b)
String convertToFormat ( Date a, String Format)

Numerical Functions

// Statistical functions
double stdDev(Number[] numSeries)
double range(Number[] numSeries)
double median(Number[] numSeries)