Solution Entities (#21916)

* Creates Content.Shared.Chemistry.Solutions
Copies Solution class to new namespace
Obsoletes old Solution class

* Switches over to the Solutions.Solution Solution

* Creates Content.Shared.Chemistry.Containers
Copies relevant components/systems to the new namespace
Obsoletes old versions

* Switches over to the Containers.XYZ namespace

* Creates SolutionSystem and obsoletes old SolutionContainerSystem methods

* Start using SolutionSystem for Solution manipulation

* EnumerateSolutions

* Move TryGetMixableSolution

* Move EnsureSolution to Server

* Create Solution Entities

* Stop using obsolete solution system methods

* Fix prototype component tests

* Add using ..Audio.Systems; back

* Wrap solution container slots in ContainerSlots

* Actually add the slot to the solution container map

* Dirty SolutionContainerComponent when ensuring solutions

* Revert namespace changes

* Remerge SolutionSystem and SolutionContainerSystem

* SolutionContainerManagerComponent refactor

* Avoid wrapping necessary code in DebugTools.Assert as it is removed when compiling for release

* Readd examine reagent sorting

* Fix errors

* Poke tests

* Fix solution names not being applied

* Fix WoolyComponent including statement

* Fix merge skew

* Fix compile errors

* Make reactions use solntities

* Reindent solution class namespace

* Field attribute changes

* AutoGenerateComponentState for SolutionContainerComponent

* SolutionContainerComponent -> ContainedSolutionComponent

* ref ReactionAttemptEvent

* Denetwork preinit solutions

* Misc 1

* Nullable TryGetSolution out vars

* Cache associated solutions

* Fix merge skew

* Use explicit regions in SharedSolutionContainerSystem.Capabilities

* Add debug assert

* Use explicit regions in SharedSolutionContainerSystem.Relay + ref SolutionContainerChangedEvent

* ContainedSolutionComponent.Name -> ContainedSolutionComponent.ContainerName

* SolutionComponent doc comments

* Implicit DataField names and property purge

* ReagentEffect DataField names

* Local variables for readability

* Sort using statements + Entity<T> event handlers

* Fix compile erros

* Fix compile errors

---------

Co-authored-by: ElectroJr <leonsfriedrich@gmail.com>

Content.Shared/Chemistry/Components/FitsInDispenserComponent.cs

@@ -1,23 +1,21 @@
 using Robust.Shared.GameStates;
 
-namespace Content.Shared.Chemistry.Components
+namespace Content.Shared.Chemistry.Components;
+
+/// <summary>
+/// Allows the entity with this component to be placed in a <c>SharedReagentDispenserComponent</c>.
+/// <para>Otherwise it's considered to be too large or the improper shape to fit.</para>
+/// <para>Allows us to have obscenely large containers that are harder to abuse in chem dispensers
+/// since they can't be placed directly in them.</para>
+/// <see cref="Dispenser.SharedReagentDispenserComponent"/>
+/// </summary>
+[RegisterComponent]
+[NetworkedComponent] // only needed for white-lists. Client doesn't actually need Solution data;
+public sealed partial class FitsInDispenserComponent : Component
 {
     /// <summary>
-    /// Allows the entity with this component to be placed in a <c>SharedReagentDispenserComponent</c>.
-    /// <para>Otherwise it's considered to be too large or the improper shape to fit.</para>
-    /// <para>Allows us to have obscenely large containers that are harder to abuse in chem dispensers
-    /// since they can't be placed directly in them.</para>
-    /// <see cref="Dispenser.SharedReagentDispenserComponent"/>
+    /// Solution name that will interact with ReagentDispenserComponent.
     /// </summary>
-    [RegisterComponent]
-    [NetworkedComponent] // only needed for white-lists. Client doesn't actually need Solution data;
-    public sealed partial class FitsInDispenserComponent : Component
-    {
-        /// <summary>
-        /// Solution name that will interact with ReagentDispenserComponent.
-        /// </summary>
-        [ViewVariables(VVAccess.ReadWrite)]
-        [DataField("solution")]
-        public string Solution { get; set; } = "default";
-    }
+    [DataField, ViewVariables(VVAccess.ReadWrite)]
+    public string Solution = "default";
 }