Significantly improved Progress component

[Gingerbeard5773]

This puts in a proper implementation of progress that allows for better customization and directionality.

    void SetColor(SColor color);
    SColor getColor();

    void SetFillDirection(FillDirection direction);
    FillDirection getFillDirection();

color is self explanatory- the progress pane can be colored unlike before. still no way to color the background pane however.

fill direction is what this pr is really about: it allows the progress fill to be set in any direction. from top to bottom or right to left and vice versa. Previously StandardHorizontalProgress was using the engine function DrawProgressBar- which was flawed as it could only go from left to right.

*As a result of added fill direction- StandardHorizontalProgress is replaced with StandardProgress, and there is no more need to add a StandardVerticalProgress which was supposedly planned