[art] Resize the minimap icons from 32x32 to 16x16

This was SVN commit r26621.

binaries/data/mods/public/simulation/templates/mixins/shrine.xml

@@ -14,6 +14,10 @@
     </VisibleClasses>
     <Undeletable>true</Undeletable>
   </Identity>
+  <Minimap>
+    <Type>structure</Type>
+    <Icon size="16.0">other.png</Icon>
+  </Minimap>
   <Obstruction>
     <Static width="20" depth="21"/>
   </Obstruction>

binaries/data/mods/public/simulation/templates/mixins/trading_post.xml

@@ -8,6 +8,10 @@
     <GenericName>Trading Post</GenericName>
     <Undeletable>true</Undeletable>
   </Identity>
+  <Minimap>
+    <Type>structure</Type>
+    <Icon size="16.0">other.png</Icon>
+  </Minimap>
   <Researcher>
     <Technologies datatype="tokens">
       -trader_health

binaries/data/mods/public/simulation/templates/template_structure_civic_civil_centre.xml

@@ -86,7 +86,7 @@
   </Loot>
   <Minimap>
     <Type>structure</Type>
-    <Icon size="32.0">civil_centre.png</Icon>
+    <Icon size="16.0">civil_centre.png</Icon>
   </Minimap>
   <Obstruction>
     <Static depth="30.0" width="30.0"/>

binaries/data/mods/public/simulation/templates/template_structure_wonder.xml

@@ -49,7 +49,7 @@
   </Loot>
   <Minimap>
     <Type>structure</Type>
-    <Icon size="32.0">wonder.png</Icon>
+    <Icon size="16.0">wonder.png</Icon>
   </Minimap>
   <Obstruction>
     <Static width="30.0" depth="30.0"/>

binaries/data/mods/public/simulation/templates/template_unit_catafalque.xml

@@ -21,7 +21,7 @@
     <Undeletable>true</Undeletable>
   </Identity>
   <Minimap>
-    <Icon size="32.0">relic.png</Icon>
+    <Icon size="16.0">relic.png</Icon>
   </Minimap>
   <Position>
     <Anchor>pitch-roll</Anchor>