Added job component and queue system

- Introduced a new JobComponent and JobQueue to manage jobs in the game.
- Created two new jobs: DigJob and InfectJob with their respective scripts.
- Updated CrystalGlowComponent, FreeCameraComponent, MushroomGlowComponent, WaterEffectComponent to improve logging messages.
- Adjusted camera movement limits in FreeCameraGameCameraComponent for better control.
- Added FiniteStateMachine class for managing states of entities.
- Implemented GlowingIdle state as an example of using the state machine.
- Included a utility function to fetch file paths by extension from a directory.

entities/glowing.tscn

@@ -1,7 +1,9 @@
-[gd_scene load_steps=5 format=3 uid="uid://ddwnkcnncxmjv"]
+[gd_scene load_steps=7 format=3 uid="uid://ddwnkcnncxmjv"]
 
 [ext_resource type="Script" path="res://entities/scripts/glowling.gd" id="1_aq1kk"]
 [ext_resource type="Texture2D" uid="uid://b0v24ggq57237" path="res://resources/particles/smallcircle.png" id="2_s3xbi"]
+[ext_resource type="Script" path="res://entities/scripts/finite_state_machine.gd" id="3_vqtdm"]
+[ext_resource type="Script" path="res://entities/states/glowling/glowling_idle.gd" id="4_2l3e6"]
 
 [sub_resource type="Animation" id="Animation_01nc3"]
 resource_name = "GlowingPulse"
@@ -63,3 +65,10 @@ energy = 0.7
 shadow_filter = 2
 shadow_filter_smooth = 7.5
 texture = ExtResource("2_s3xbi")
+
+[node name="StateMachine" type="Node" parent="." node_paths=PackedStringArray("initial_state")]
+script = ExtResource("3_vqtdm")
+initial_state = NodePath("Idle")
+
+[node name="Idle" type="Node" parent="StateMachine"]
+script = ExtResource("4_2l3e6")