Added dfb_line_segment_intersect(). Gets the intersection point between a line and segment within the given segment.
Added dfb_line_segment_intersect().
Gets the intersection point between a line and segment within the given segment.

djbclark/directfb-core-DirectFB,deniskropp/DirectFB,djbclark/directfb-core-DirectFB,deniskropp/DirectFB,sklnet/DirectFB,lancebaiyouview/DirectFB,kaostao/directfb,mtsekm/test,sklnet/DirectFB,kaostao/directfb,kevleyski/directfb,kevleyski/DirectFB-1,sklnet/DirectFB,kevleyski/DirectFB-1,jcdubois/DirectFB,Distrotech/DirectFB,DirectFB/directfb,lancebaiyouview/DirectFB,djbclark/directfb-core-DirectFB,dfbdok/DirectFB1,kevleyski/directfb,jcdubois/DirectFB,Distrotech/DirectFB,jcdubois/DirectFB,mtsekm/test,Distrotech/DirectFB,deniskropp/DirectFB,sklnet/DirectFB,deniskropp/DirectFB,dfbdok/DirectFB1,dfbdok/DirectFB1,kaostao/directfb,kevleyski/DirectFB-1,kevleyski/directfb,DirectFB/directfb,lancebaiyouview/DirectFB,mtsekm/test,DirectFB/directfb,kevleyski/directfb,djbclark/directfb-core-DirectFB,lancebaiyouview/DirectFB,kevleyski/DirectFB-1