Sync with Cajun-Style-Temples, part 2

Add Old Magic Logos to Packs
Add Alias blends to Adventure
Add Ancestral Generic to Devoid
Add Vorthos Box to Future
Fix Split-Fusable border and second face watermarks
Add Symbol Extractor
Update namechecker

data/magic-m15-split-fusable.mse-style/style

@@ -489,9 +489,9 @@ card style:
 			color: black
 			separator color: red
 	type 2:
-		left: { if has_identity_2() then "301" else "288" }
+		left: { if has_identity2() then "301" else "288" }
 		top: 211
-		width: { (if has_identity_2() then "204" else "217") - max(16,card_style.rarity.content_width) }
+		width: { (if has_identity2() then "204" else "217") - max(16,card_style.rarity.content_width) }
 		height: 15
 		alignment: top shrink-overflow
 		z index: 1
@@ -684,7 +684,7 @@ card style:
 		render style: image
 		popup style: in place
 		alignment: middle center
-		include file: /magic-watermarks.mse-include/watermarks
+		include file: /magic-watermarks.mse-include/watermarks_back
 	############################# Card sorting / numbering
 	set code:
 		left: 22