Design the class Line to implement a line:

Overloads the stream insertion operator, $<<,$ for easy output.

Overloads the stream extraction operator, $>>,$ for easy intput. $($The lineax $+$ by $=$ c is input as $($a$,$ b$,$c$)$

Overloads the assignment operator to copy a line into another line.

Overloads the unary operator $+,$ as a member function, so that it returns

true if a line is vertical; false otherwise.

Overloads the unary operator $-,$ as a member function, so that it returns true if a line is horizontal; false otherwise.

Overloads the operator $==,$ as a member function, so that it returns true if two lines are equal; false otherwise.

Overloads the operator $||,$ as a member function, so that it returns true if two lines are parallel; false otherwise.

Overloads the operator &&$,$ as a member function, so that it returns true if two lines are perpendicular; false otherwise.

Write a program to test your class.

The solution must contain the following:

Source code.

Separate class specifications from implementation.

Program output $($Language is C$++)$