Merge branch 'release/3.0.0-beta-1' into development
Updating change log header for beta
Fixed SteerForSphericalObstacles docs, added TODOs
Improved SteerForWander description
BREAKING CHANGE: GetSeekVector now defaults to not slow down on approach

This new default will make a lot more sense to people using it to write
new steering behaviours if the vehicle isn't calling CalculateForce on
every frame.

It's a breaking change from the old behavior, but now's the time to do
those.
BUGFIX: SteerForNeighborGroup impact on radius should have been adding

We were instead multiplying by mistake, meaning that for vehicles with a
radius < 1 (which is not exactly rare) we were significantly reducing the
actual impact.
BUGFIX: SteerForNeighbor subclasses were not being initialised
Changed setting of if to draw neighbours to a property
Lowering the default arrival radius for more precise default positioning

Users can then increase it if they determine that they the default is
too tight.
Reformatted SteerForEvasion for consistency, clarified comments
Updating changelog version
Merge branch 'release/3.0.0-beta-2'