Create K-C-F_Conversion

A slightly more complex temperature conversion tool for converting Kelvin, Celsius, and Fahrenheit. Think it might tell you all three of them or just give you your desired temp I don't know yet. But this one is going in the direction of just giving you what you want it converted to however I am now thinking that a version where it gives you both Celsius and Kelvin for a Fahrenheit temperature would be better.