Set tetra gold material tier to 5 (diamond)

Also add an alternate recipe for crafting a singular arrow

src/main/resources/data/minecraft/recipes/spectral_arrow_alt_singular.json

@@ -0,0 +1,11 @@
+{
+	"type": "minecraft:crafting_shapeless",
+	"ingredients": [
+		{"item": "minecraft:arrow"},
+		{"item": "minecraft:glow_berries"}
+	],
+	"result": {
+		"item": "minecraft:spectral_arrow",
+		"count": 1
+	}
+}

src/main/resources/data/tetra/materials/metal/gold.json

@@ -9,7 +9,7 @@
     "integrityCost": 2,
     "integrityGain": 3,
     "magicCapacity": 132,
-    "toolLevel": 4,
+    "toolLevel": 5,
     "toolEfficiency": 12,
     "tints": {
         "glyph": "gold_glyph",