Perform Testing for DateInfo for Julian Day Number Related Scenarios

[vreddi]

DateInfo.getJulianDayNumber()
https://en.wikipedia.org/wiki/Julian_day

*Write a series of tests for calculates realted to JDN.

*What day will it be on a particular date? What was the day on a particular date?

*Get Day Difference using JDN.

• Other Scenarios that will be added in the future.