Add Quadratic Bezier drawing (#1468)

* Add quadratic bezier to shapes.c

* Add DrawLineBezierQuad to header

src/raylib.h

@@ -1090,6 +1090,7 @@ RLAPI void DrawLine(int startPosX, int startPosY, int endPosX, int endPosY, Colo
 RLAPI void DrawLineV(Vector2 startPos, Vector2 endPos, Color color);                                     // Draw a line (Vector version)
 RLAPI void DrawLineEx(Vector2 startPos, Vector2 endPos, float thick, Color color);                       // Draw a line defining thickness
 RLAPI void DrawLineBezier(Vector2 startPos, Vector2 endPos, float thick, Color color);                   // Draw a line using cubic-bezier curves in-out
+RLAPI void DrawLineBezierQuad(Vector2 startPos,Vector2 controlPos,Vector2 endPos, float thick, Color color);//Draw line using quadratic bezier curves with a control point
 RLAPI void DrawLineStrip(Vector2 *points, int pointsCount, Color color);                                 // Draw lines sequence
 RLAPI void DrawCircle(int centerX, int centerY, float radius, Color color);                              // Draw a color-filled circle
 RLAPI void DrawCircleSector(Vector2 center, float radius, int startAngle, int endAngle, int segments, Color color);      // Draw a piece of a circle