Added javadoc comments to Main class
Added javadoc comments to Main class

Javadoc comments for:
- Main class.
- Main class attributes.
- Main class methods.

joshuagn/ANPR,justhackit/javaanpr,joshuagn/ANPR,adi9090/javaanpr,adi9090/javaanpr,justhackit/javaanpr