Section 1.1 - The first program in Swift
Section 1.2 - Print table of Fahr temperatures and Celsius equivalents
Section 1.3 - Fahr and Celsius equivalents using for loop
Section 1.4 - Fahr and Celsius equivalents using for lopp and symbolic constants
Section 1.5 - Copy input chars to standard output
Section 1.5 - Count characters in the input