Skill progression system [Draft] (#1056)

* fuck all

* clean up

* remove knowledge books

* Update base.yml

* cl

* fix #991

* fix

* Update subgamemodes.yml

* manual migration + recipes fix

* Update comoss.yml

* setup data

* setup skills systems

* more blacksmithing skills

* Update base.yml

* Create CP14SkillEffectAction.cs

* skill button returns

* base graph UI window

* skill tree drawing

* UI improve

* pyro setup

* skill trees selection, dragging control

* refactor skill system: rename Skills to LearnedSkills, add experience tracking and learning logic

* Create available.png

* skill description generation setup

* auto parsing skill names and descriptions

* Hydrosophistry

* water light fire and metamagic ported to skill tre

* ice dagger spell returns

* Update ice_dagger.yml

* delete old files

* Update modular_garde.yml

* ice arrow spell

* link graph with parallax

* show experience counter

* polish

* puf

* p

* pipap

* finally ready to merg?

* fix

* fix 2

Content.Server/_CP14/Skill/CP14SkillSystem.cs

@@ -0,0 +1,24 @@
+using Content.Shared._CP14.Skill;
+using Content.Shared._CP14.Skill.Components;
+
+namespace Content.Server._CP14.Skill;
+
+public sealed partial class CP14SkillSystem : CP14SharedSkillSystem
+{
+    public override void Initialize()
+    {
+        base.Initialize();
+
+        SubscribeNetworkEvent<CP14TryLearnSkillMessage>(OnClientRequestLearnSkill);
+    }
+
+    private void OnClientRequestLearnSkill(CP14TryLearnSkillMessage ev, EntitySessionEventArgs args)
+    {
+        var entity = GetEntity(ev.Entity);
+
+        if (args.SenderSession.AttachedEntity != entity)
+            return;
+
+        TryLearnSkill(entity, ev.Skill);
+    }
+}