Added Professor Class

[YuvalDeshe]

Added the Professor class to be used in webscraping; #21

[Jeffrey-000]

some issues: -create class constructors -change the class property visibility to private; currently is package protected -create necessary getters and setters -specifically line 11 note: setting the values of the array should be done by a constructor and after the variables have be initialized

[YuvalDeshe]

The commit 07510e0:

• Added 3 constructors.
• Made all variables within the class private.
• Created a getter and a setter method for each variable (two setters for ratingDistribution).
• Added documentation for each method.

[YuvalDeshe]

The commit 40de972 fixed the order of the variables.

[YuvalDeshe]

The commits 1de790b and b53cf0a moved the file to the correct directory according to the new file structure and added Professor.java to the edu.uga.devdogs.professor_rating.webscraping package.