Add networked crab gathering prototype

items/catalog/crab_net.tres

@@ -0,0 +1,16 @@
+[gd_resource type="Resource" script_class="ItemData" load_steps=2 format=3]
+
+[ext_resource type="Script" path="res://items/item_data.gd" id="1_item"]
+
+[resource]
+script = ExtResource("1_item")
+item_id = &"crab_net"
+display_name = "crab net"
+description = "a hand net for catching crabs and other small shore animals."
+active = true
+category = 1
+stackable = false
+max_stack = 1
+usable = false
+equippable = true
+hotbar_allowed = true