@kostadin I added everything for QuadRemeshing version 7s RhinoCommon api already. You can find everything you need on the Mesh class. There are several overloads available.
https://developer.rhino3d.com/wip/api/RhinoCommon/html/Overload_Rhino_Geometry_Mesh_QuadRemesh.htm
You can find an example gh script attached the topic located here. New QuadRemesh command!
C++ SDK is still on the todo list and will be available in the future.