feat: Add weapon system and attack functionality to Rooster character

- Introduced a weapons node in EntityBase for weapon management.
- Updated Rooster to include cooldown for attacks and weapon anchoring.
- Implemented attack method in Rooster to generate bullets.
- Enhanced BulletBase with life distance and lifetime properties.
- Created Chick character with animations and integrated into the world.
- Updated PurpleCrystal bullet behavior to move forward based on rotation.
- Refactored EntityBase to use a fields dictionary for attributes.
- Added FieldStore for managing entity-related constants.
- Adjusted GameRule to include bullet speed multiplier.

components/Characters/Rooster.tscn

@@ -32,6 +32,7 @@ radius = 41.0122
 
 [node name="Rooster" instance=ExtResource("1_e5pl8")]
 script = ExtResource("2_oqdqd")
+cooldownUnit = 200.0
 
 [node name="texture" parent="." index="0"]
 position = Vector2(0, -70)
@@ -42,6 +43,9 @@ animation = &"walk"
 position = Vector2(12, 16)
 shape = SubResource("CircleShape2D_h1v0q")
 
+[node name="normal" type="Node2D" parent="texture/weapons" index="0"]
+position = Vector2(54, -45)
+
 [node name="statebar" parent="." index="2" node_paths=PackedStringArray("entity")]
 position = Vector2(0, -151)
 entity = NodePath("..")