1. Stop using NJsonSchema, it didn't do anything useful.
2. Use System.Text.Json instead of Newtonsoft.Json.
3. General cleanup of the code, using arrays instead of lists, etc...
update a bunch of packages and use JetBrains.Annotations as private asset as needed
mark some hot math methods agg inline to benefit from loop opts
use FMA for interp
use canny min/max/clamp
make Quaternion NormalizeAngle fixed time and faster
clean up YamlDotNet references
RobustToolbox projects should be named Robust.*
This PR changes the RobustToolbox projects from SS14.* to Robust.*
Updates SS14.* prefixes/namespaces to Robust.*
Updates SpaceStation14.sln to RobustToolbox.sln
Updates MSBUILD/SS14.* to MSBUILD/Robust.*
Updates CSProject and MSBuild references for the above
Updates git_helper.py
Removes Runserver and Runclient as they are unusable