Amber ore & blocks (#1585)

part of #1326

![image](https://github.com/user-attachments/assets/702eb90d-3445-40c9-a6cf-8f6161d7b830)
Amber starts generating at -1250. I would still want it to appear in
sandstone caves, beaches, etc. but we don't support that right now.


![image](https://github.com/user-attachments/assets/e3a5acac-75b7-4d70-8e49-85d84c5fd004)
Amber has the `light` modifier at 50%


![image](https://github.com/user-attachments/assets/93dd9ce9-25cb-46a4-a633-1e6af72e5032)
Something unique compared to other gem blocks is that amber is
translucent.

assets/cubyz/blocks/amber_block.zig.zon

@@ -0,0 +1,12 @@
+.{
+	.tags = .{.wood},
+	.blockHealth = 15,
+	.drops = .{
+		.{.items = .{.auto}},
+	},
+	.transparent = true,
+	.hasBackFace = true,
+	.model = "cubyz:cube",
+	.absorbedLight = 0x117edc,
+	.texture = "cubyz:amber_block",
+}

assets/cubyz/blocks/amber_ore.zig.zon

@@ -0,0 +1,36 @@
+.{
+	.tags = .{.stone},
+	.blockHealth = 15,
+	.blockResistance = 3,
+	.item = .{
+		.texture = "amber.png",
+		.material = .{
+			.density = 1.0,
+			.elasticity = 0.25,
+			.hardness = 2.5,
+			.textureRoughness = 0.1,
+			.colors = .{
+				0xff9b3481b, 0xffd35a1c, 0xffee7023, 0xffff9134, 0xffffc14a,
+			},
+			.modifiers = .{
+				.{
+					.id = "light",
+					.strength = 0.5,
+				},
+			},
+		},
+	},
+	.ore = .{
+		.veins = 3,
+		.size = 3,
+		.height = -1250,
+		.minHeight = -8000,
+		.density = 0.15,
+	},
+	.drops = .{
+		.{.items = .{.auto}},
+	},
+	.rotation = .ore,
+	.model = "cubyz:cube",
+	.texture = "cubyz:amber_ore",
+}

assets/cubyz/blocks/cut_amber_block.zig.zon

@@ -0,0 +1,12 @@
+.{
+	.tags = .{.wood},
+	.blockHealth = 15,
+	.drops = .{
+		.{.items = .{.auto}},
+	},
+	.transparent = true,
+	.hasBackFace = true,
+	.model = "cubyz:cube",
+	.absorbedLight = 0x117edc,
+	.texture = "cubyz:cut_amber_block",
+}

assets/cubyz/recipes/special_recipes.zig.zon

@@ -95,6 +95,14 @@
 		.inputs = .{"cubyz:diamond_block"},
 		.output = "cubyz:cut_diamond_block",
 	},
+	.{
+		.inputs = .{"4 cubyz:amber_ore"},
+		.output = "cubyz:amber_block",
+	},
+	.{
+		.inputs = .{"cubyz:amber_block"},
+		.output = "cubyz:cut_amber_block",
+	},
 	.{
 		.inputs = .{"4 cubyz:ruby_ore"},
 		.output = "cubyz:ruby_block",
@@ -143,6 +151,14 @@
 		.inputs = .{"cubyz:cut_diamond_block"},
 		.output = "4 cubyz:diamond",
 	},
+	.{
+		.inputs = .{"cubyz:amber_block"},
+		.output = "4 cubyz:amber_ore",
+	},
+	.{
+		.inputs = .{"cubyz:cut_amber_block"},
+		.output = "4 cubyz:amber_ore",
+	},
 	.{
 		.inputs = .{"cubyz:ruby_block"},
 		.output = "4 cubyz:ruby_ore",