Expand fish and equipment catalogs

items/catalog/rods/field_guide_rod.tres

@@ -0,0 +1,23 @@
+[gd_resource type="Resource" script_class="FishingRodData" load_steps=2 format=3]
+
+[ext_resource type="Script" path="res://items/fishing_rod_data.gd" id="1_script"]
+
+[resource]
+script = ExtResource("1_script")
+item_id = &"field_guide_rod"
+display_name = "field guide rod"
+description = "a note-covered rod that keeps tugging toward something new."
+active = false
+category = 0
+stackable = false
+max_stack = 1
+usable = true
+equippable = true
+hotbar_allowed = true
+shop_order = 13
+shop_price = 1350
+unlock_level = 8
+undiscovered_weight_multiplier = 1.9
+bite_time_multiplier = 1.15
+effect_summary = "substantially increases the relative weight of eligible undiscovered species."
+tradeoff = "longer bite waits and no bonus after a species is discovered."