add world_conquest tags to schema

data/schema/core/addons.cfg

@@ -115,6 +115,7 @@
 		[/then]
 	[/if]
 	{SIMPLE_KEY terrain_liked terrain_list}
+	{DATA_TAG "world_conquest_data" 0 1}
 [/tag]
 
 [tag]
@@ -159,6 +160,7 @@
 		{SIMPLE_KEY remove_advancement string}
 		{SIMPLE_KEY set_experience int}
 	[/tag]
+	{DATA_TAG "world_conquest_data" 0 1}
 [/tag]
 [tag]
 	name="campaign"

data/schema/core/mapgen/lua.cfg

@@ -78,4 +78,15 @@
 			[/tag]
 		[/then]
 	[/if]
+	# Additional contents for WCII scenario generator
+	[if]
+		glob_on_create_scenario=*onquest*
+		[then]
+			[tag]
+				name="scenario"
+				super="scenario"
+			[/tag]
+			{SIMPLE_KEY id_suffix string}
+		[/then]
+	[/if]
 [/tag]