Schema: Fix a few more cases of keys and tags not accepting variable substitution

data/schema/filters/unit.cfg

@@ -50,7 +50,7 @@
 	name="$filter_adjacent"
 	max=0
 	super="$filter_unit"
-	{SIMPLE_KEY count s_int}
+	{SIMPLE_KEY count s_range_list}
 	{SIMPLE_KEY adjacent dir_list}
 	{SIMPLE_KEY is_enemy s_bool}
 [/tag]

data/schema/game_config.cfg

@@ -403,6 +403,7 @@
     {SUBST_TYPE coordinates}
     {SUBST_TYPE range_list}
     {SUBST_TYPE terrain_code}
+    {SUBST_TYPE dir}
     [tag]
         name="root"
         min=1

data/schema/types/subst.cfg

@@ -1,6 +1,12 @@
 
 # Note that basic.cfg must also be included for these to work!
 
+[type]
+	name="subst"
+	# Basically, if there's a non-final $ in it, just give up on trying to validate it
+	value=".*\$.+"
+[/type]
+
 #define SUBST_TYPE BASE
 [type]
 	name=s_{BASE}
@@ -9,8 +15,7 @@
 			link={BASE}
 		[/type]
 		[type]
-			# Basically, if there's a non-final $ in it, just give up on trying to validate it
-			value=".*\$.+"
+			link=subst
 		[/type]
 	[/union]
 [/type]

data/schema/units/single.cfg

@@ -6,7 +6,7 @@
 	{SIMPLE_KEY variation string}
 	{SIMPLE_KEY side s_int}
 	{SIMPLE_KEY id string}
-	{SIMPLE_KEY gender gender}
+	{SIMPLE_KEY gender gender,subst}
 	{SIMPLE_KEY name t_string}
 	{DEFAULT_KEY unrenamable s_bool no}
 	{DEFAULT_KEY canrecruit s_bool no}
@@ -41,6 +41,7 @@
 	{DATA_TAG variables 0 1}
 	[tag]
 		name="modifications"
+		{INSERT_TAG}
 		[link]
 			name="units/$modifications/trait"
 		[/link]
@@ -86,7 +87,7 @@
 	{SIMPLE_KEY x s_coordinate}
 	{SIMPLE_KEY y s_coordinate}
 	{SIMPLE_KEY location_id string}
-	{SIMPLE_KEY facing dir}
+	{SIMPLE_KEY facing s_dir}
 	{SIMPLE_KEY goto_x s_int}
 	{SIMPLE_KEY goto_y s_int}
 	{SIMPLE_KEY hitpoints s_int}