[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/Data/IBaseInfoDefinitions.cs

@@ -21,14 +21,10 @@ public interface IPlatformInfo
     Target SupportedTargets { get; }   
 }
 
-
 /// <summary>
-/// Which package does the following data belong to?
+/// All info we should have on a package for a given resource.
 /// </summary>
-public interface IPackageInfo
-{
-    ContentPackage OwnerPackage { get; }
-}
+public interface IPackageInfo : IDataInfo { }
 
 
 /// <summary>
@@ -65,13 +61,3 @@ public interface IResourceCultureInfo
     /// </summary>
     ImmutableArray<CultureInfo> SupportedCultures { get; }
 }
-
-
-public interface ILoadableResourceInfo
-{
-    /// <summary>
-    /// [UNIQUE] The name that will be used when trying to reference this resource for execution or loading.
-    /// </summary>
-    [Required]
-    public string InternalName { get; }
-}