feat: add BasePower abstraction

ISuperPower.cs

@@ -0,0 +1,17 @@
+using CounterStrikeSharp.API.Core;
+
+namespace Cs2SuperPowers;
+
+public interface ISuperPower
+{
+    int Id { get; }
+    string Name { get; }
+    string Description { get; }
+    char ChatColor { get; }
+    bool CanBeRandomlyAssigned { get; }
+    int MinimumPlayersRequired { get; }
+
+    void Initialize(BasePlugin pluginRef);
+    void AssignToPlayer(CCSPlayerController player, bool showMessages);
+    void UnassignFromPlayer(CCSPlayerController player);
+}