feat: Splits Server in Core and Application (#1806)

> [!Note]
> **Developer Note**
> Now developers will only need to build/run the Application project instead of everything.
> When adding new projects, make sure to: 
> 1. Add a reference to that project in the Application project.
> 2. Add the dll file to the Distribution/Data/assemblies.json file

### Summary
- Adds an application project
- Consolidates process restarts to use `Core.Kill(true)`
- Removes some old messaging, for example processor optimization
- Fixes missing build cleanup

.gitignore

@@ -1,6 +1,8 @@
 # Distribution Files
 /Distribution/ModernUO
 /Distribution/ModernUO.*
+/Distribution/Server
+/Distribution/Server.*
 /Distribution/Assemblies
 /Distribution/bsdtar
 /Distribution/Configuration/antimacro.json
@@ -19,6 +21,7 @@
 /Distribution/*.dylib
 /Distribution/*.so
 /Distribution/*.dll
+/Distribution/*.exe
 /Distribution/runtimes
 /Distribution/nohup.out
 /Distribution/ref