Add EventManager and event handling system; implement event triggering and popup display

Scripts/Core/EventDto.cs

@@ -0,0 +1,46 @@
+using System.Collections.Generic;
+using Newtonsoft.Json;
+
+namespace ParasiticGod.Scripts.Core;
+
+public class EventTriggerDto
+{
+    [JsonProperty("minFollowers")]
+    public long MinFollowers { get; set; } = 0;
+    
+    [JsonProperty("maxCorruption")]
+    public double MaxCorruption { get; set; } = 100;
+}
+
+public class EventOptionDto
+{
+    [JsonProperty("text")]
+    public string Text { get; set; }
+
+    [JsonProperty("tooltip")]
+    public string Tooltip { get; set; }
+
+    [JsonProperty("effects")]
+    public List<EffectDto> Effects { get; set; }
+}
+
+public class EventDto
+{
+    [JsonProperty("id")]
+    public string Id { get; set; }
+
+    [JsonProperty("title")]
+    public string Title { get; set; }
+
+    [JsonProperty("description")]
+    public string Description { get; set; }
+
+    [JsonProperty("meanTimeToHappen")]
+    public int MeanTimeToHappen { get; set; } = 100; // in game days
+
+    [JsonProperty("trigger")]
+    public EventTriggerDto Trigger { get; set; }
+
+    [JsonProperty("options")]
+    public List<EventOptionDto> Options { get; set; }
+}