[Milestone] AssemblyLoader completed.

Details:
- Assembly Mgmt Service for loading now a separate interface, not intended for normal use.
- Assembly Loader work; implemented custom dictionary key and table.
- Assembly loading work.
- EventService completed.
- Moved assembly extensions to ModUtils.cs
- Work to event service.
NetworkService work
- Added ImpromptuInterfaces package.
- Networking Service work to support NetVars
- Event Service
- Added assemblies references package for script compilation. Updated Roslyn version for compatibility.
- Package Loading work.
Swap Harmony to HarmonyX
- More refactor conversion to FluentResults.
- Updated StylesService to return Results.
- Refactor of PackageService partially complete.
- Made IService.Reset() required to return a Result.
- Moved plugin/assembly related code to their own folder (same namespace).
- Updated interfaces to reflect the use of Result<T>.
- Partial refactor, incomplete.
- Added 'FluentResults' so we can stop using cursed Exception-based flow control in loading code.
- Added 'OneOf' nuget package: https://github.com/mcintyre321/OneOf
for the implementation of the Optional<T> pattern and complex discrete return types instead of cursed enums (see current AssemblyManager.cs).
- Reapplied old branch changes.

Barotrauma/BarotraumaShared/SharedSource/LuaCs/Services/ServicesProvider.cs

@@ -24,7 +24,7 @@ public class ServicesProvider : IServicesProvider
     
     private readonly ReaderWriterLockSlim _serviceLock = new();
     
-    public void RegisterServiceType<TSvcInterface, TService>(ServiceLifetime lifetime, ILifetime lifetimeInstance = null) where TSvcInterface : class, IService where TService : class, IService, TSvcInterface, new()
+    public void RegisterServiceType<TSvcInterface, TService>(ServiceLifetime lifetime, ILifetime lifetimeInstance = null) where TSvcInterface : class, IService where TService : class, IService, TSvcInterface
     {
         if (lifetimeInstance is null)
         {
@@ -50,7 +50,6 @@ public class ServicesProvider : IServicesProvider
         {
             _serviceLock.EnterReadLock();
             ServiceContainer.Register<TSvcInterface, TService>(lifetimeInstance);
-            ServiceContainer.Compile<TService>();
             OnServiceRegistered?.Invoke(typeof(TSvcInterface), typeof(TService));
         }
         finally
@@ -60,7 +59,7 @@ public class ServicesProvider : IServicesProvider
     }
 
     public void RegisterServiceType<TSvcInterface, TService>(string name, ServiceLifetime lifetime,
-        ILifetime lifetimeInstance = null) where TSvcInterface : class, IService where TService : class, IService, TSvcInterface, new()
+        ILifetime lifetimeInstance = null) where TSvcInterface : class, IService where TService : class, IService, TSvcInterface
     {
         if (name.IsNullOrWhiteSpace())
         {
@@ -91,7 +90,6 @@ public class ServicesProvider : IServicesProvider
         {
             _serviceLock.EnterReadLock();
             ServiceContainer.Register<TSvcInterface, TService>(name, lifetimeInstance);
-            ServiceContainer.Compile<TService>();
             OnServiceRegistered?.Invoke(typeof(TSvcInterface), typeof(TService));
         }
         finally
@@ -128,7 +126,7 @@ public class ServicesProvider : IServicesProvider
         }
     }
 
-    public bool TryGetService<TSvcInterface>(out IService service) where TSvcInterface : class, IService
+    public bool TryGetService<TSvcInterface>(out TSvcInterface service) where TSvcInterface : class, IService
     {
         try
         {
@@ -147,7 +145,7 @@ public class ServicesProvider : IServicesProvider
         }
     }
 
-    public bool TryGetService<TSvcInterface>(string name, out IService service) where TSvcInterface : class, IService
+    public bool TryGetService<TSvcInterface>(string name, out TSvcInterface service) where TSvcInterface : class, IService
     {
         try
         {