Newton 4.00 stable release for 2021

4.00
-Solvers are now lock and atomic free, also branch free as much as possible.
-Many scenes management parallel loops are fused.
-CMake scripts tested on visual studio 2015 or better, GCC and visual studio 2019 CLangCL
-Many bug fixed and optimizations with focus on parallel executions.
-Added ndModel. A collection of bodies, collision shapes and joints that get updated in between the collision and the solver phase.
here the application can see all components of a complex model and apply customization before solver resolution.
-implements a full multibody vehicle based on ndModel.

re uploaded with double precision enabled.