Implements modifier system for weapons

Adds a modifier system allowing dynamic modification of weapon
stats and behavior. This includes:

- Creating ModifierLibrary to manage available modifiers.
- Adds ModifierManager to handle equipping and unequipping modifiers
- Adds a new RangedWeaponComponent to handle firing projectiles and
  managing modifiers.
- Introduces a DebugUI for in-game modifier management.
- Introduces an "Unlimited Power" modifier that changes the projectile scene.
- Modifies stats components to work with the new modifier system.

This system allows for more flexible and customizable weapon
functionality.

UI/DebugUI.tscn

@@ -0,0 +1,85 @@
+[gd_scene load_steps=2 format=3 uid="uid://b0w0oxbtax5si"]
+
+[ext_resource type="Script" uid="uid://bblhlxj8sqtql" path="res://UI/_scripts/debug_ui.gd" id="1_pwlud"]
+
+[node name="DebugUi" type="Control"]
+layout_mode = 3
+anchors_preset = 0
+script = ExtResource("1_pwlud")
+
+[node name="MarginContainer" type="MarginContainer" parent="."]
+offset_left = 13.0
+offset_top = 15.0
+offset_right = 91.0
+offset_bottom = 173.0
+theme_override_constants/margin_left = 5
+theme_override_constants/margin_top = 5
+theme_override_constants/margin_right = 5
+theme_override_constants/margin_bottom = 5
+
+[node name="VBoxContainer" type="VBoxContainer" parent="MarginContainer"]
+layout_mode = 2
+theme_override_constants/separation = 5
+
+[node name="FPS" type="HBoxContainer" parent="MarginContainer/VBoxContainer"]
+layout_mode = 2
+
+[node name="FPSLabel" type="Label" parent="MarginContainer/VBoxContainer/FPS"]
+layout_mode = 2
+text = "FPS: "
+
+[node name="FPSValue" type="Label" parent="MarginContainer/VBoxContainer/FPS"]
+unique_name_in_owner = true
+layout_mode = 2
+text = "123"
+
+[node name="HSeparator" type="HSeparator" parent="MarginContainer/VBoxContainer"]
+layout_mode = 2
+
+[node name="PlayerWeapon" type="HBoxContainer" parent="MarginContainer/VBoxContainer"]
+visible = false
+layout_mode = 2
+size_flags_vertical = 3
+
+[node name="PlayerWeaponLabel" type="Label" parent="MarginContainer/VBoxContainer/PlayerWeapon"]
+layout_mode = 2
+text = "Player Weapon:"
+
+[node name="PlayerWeaponValue" type="Label" parent="MarginContainer/VBoxContainer/PlayerWeapon"]
+layout_mode = 2
+
+[node name="PlayerWeaponMods" type="HBoxContainer" parent="MarginContainer/VBoxContainer"]
+visible = false
+layout_mode = 2
+size_flags_vertical = 2
+
+[node name="PlayerWeaponModsLabel" type="Label" parent="MarginContainer/VBoxContainer/PlayerWeaponMods"]
+visible = false
+layout_mode = 2
+text = "Mods:"
+
+[node name="PlayerWeaponModsValue" type="Label" parent="MarginContainer/VBoxContainer/PlayerWeaponMods"]
+unique_name_in_owner = true
+layout_mode = 2
+text = "123
+456
+678"
+
+[node name="ModifierButtons" type="VBoxContainer" parent="MarginContainer/VBoxContainer"]
+unique_name_in_owner = true
+layout_mode = 2
+
+[node name="Button" type="Button" parent="MarginContainer/VBoxContainer/ModifierButtons"]
+layout_mode = 2
+text = "123"
+
+[node name="PlayerStats" type="HBoxContainer" parent="MarginContainer/VBoxContainer"]
+layout_mode = 2
+size_flags_vertical = 2
+
+[node name="PlayerStatsValue" type="Label" parent="MarginContainer/VBoxContainer/PlayerStats"]
+unique_name_in_owner = true
+layout_mode = 2
+text = "123
+456
+678"