Added Control & Flight
Customer files now work
Almost done with Lab8

Various needed changes are listed as comments on the top of fly.cpp.
They are just small potential additions to Customer, Time, and Date, as
well as some questions regarding return values of some methods.
Add to Customer class
Added functions
Added in Date and time, almost there
Merge remote-tracking branch 'origin/Control' into Control

Conflicts:
	Flight.cpp
	fly.cpp
Can
Reading in works. Needs only Customer input checking
Removed used Customers Header and finished Customer
Add to Date and Put in check.
fixed Date CheckValidDate
get city names and Customer class done
Merge branch 'Control'