ajout des mutation et refonte de l'inspecteur

* ajout des mutations #86
* changement de l'objectif #85
* refonte de l'inspecteur #71
* changement léger de la plantation
* les plantes ne donnent que des graines de leurs espèces
* refonte partielle du code, refacto

entities/plants/scripts/plant_mutation/elitist_mutation.gd

@@ -0,0 +1,26 @@
+extends PlantMutation
+class_name ElitistMutation
+
+func get_icon() -> Texture:
+    return preload("res://common/icons/copy.svg")
+
+func get_base_rarity() -> int:
+    return 0
+
+func get_mutation_name() -> String:
+    return "Intolerant"
+
+func get_mutation_description() -> String:
+    return "Add [b]%d[/b] to the score for each plant of the same species around, but score become 0 if none is around." % level
+
+func mutate_score(plant : Plant, score) -> int:
+    var plant_count = 0
+
+    for area in plant.influence_zone.get_overlapping_areas():
+        if area is Plant and area.plant_type.name == plant.plant_type.name:
+            plant_count += 1
+    
+    if plant_count == 0:
+        return 0
+    else : 
+        return score + level * plant_count