feat(api): Enhance ProjectLoadAsync for optimized recursion

[rlabbeptc]

For Kepware instances that support JsonProjectLoad services, an object in the project configuration can now be serialized to include itself and all of it's children. (content=serialize) For very large projects, it is beneficial to be able to do a complete load of the project without needing to recursively read all children objects.

This is documenting to add capabilities to use the ProjectLoadAsync method to intelligently query and load objects in Kepware without a need to read every child object.