Macroquad examples tracking issue

[Vrixyz]

example	PR	Note
points in poly	#210	no 3d version
raycast	#234
intersection plane	#250
projection	#234
Convex hull	#256
AABB	#257
Bounding spheres	#259

full examples list:

aabb3d
ball3d
bounding_sphere3d
capsule
cone
contact_query3d
convex3d
convex_hull3d
convex_try_new3d
cuboid3d
cylinder
distance_query3d
getting_started
mesh3d
plane3d
plane_intersection
polyline3d
project_point3d
proximity_query3d
solid_point_query3d
solid_ray_cast3d: 🚧 ; probably adaptations to make to #234 to use more of the API.
time_of_impact_query3d