Alignment class

1. Constructors
2. Alignment
3. Properties
4. x
5. y
6. hashCode
7. runtimeType
8. Methods
9. add
10. alongOffset
11. alongSize
12. inscribe
13. resolve
14. toString
15. withinRect
16. noSuchMethod
17. Operators
18. operator %
19. operator *
20. operator +
21. operator -
22. operator /
23. operator unary-
24. operator ~/
25. operator ==
26. Static methods
27. lerp
28. Constants
29. bottomCenter
30. bottomLeft
31. bottomRight
32. center
33. centerLeft
34. centerRight
35. topCenter
36. topLeft
37. topRight