The object member of the ObjectManager is now findObject.
Added the function findIntersectingObjects in the collision_util pair of files.
The center function now can handle up to three *different* number types.
Added a size method to the ObjectManager.
Fixed a segfault in LocalServer::objects.
Added explicitly defaulted constructurs/destructures to LocalServer and Server.
Forgot to mark setDestination and setVelocity pure virtual in the Server class.
Added an unofficial method to LocalServer which spawns a Paddle.
There is now a rudimentary step function for LocalServer.
Fixed up some client code so it compiles and runs.
pong::isIn is now a constexpr function.
Two functions: isInsideVolume and closestSideFromInside have been added to the collision_util files.

They both will help in checking wall collisions, in a not-too-specific way.