New special nodes:

- Town set attitude for affecting single creature, adapted from Windows code; technically redundant, but maybe handy
- If numeric response
- Print nums (for debugging)
- SDF arithmetic - add, subtract, multiply, divide, exponentiate
- Store random to SDF (adapted from Windows code)
- Display picture (inspired by Windows code, but the implementation is completely different and totally incompatible)

rsrc/dialogs/show-map.xml

@@ -0,0 +1,8 @@
+<?xml version='1.0' encoding='UTF-8' standalone='no'?>
+<?xml-stylesheet href="dialog.xsl" type="text/xsl"?>
+<dialog defbtn='okay' debug='true'>
+	<button name='okay' type='regular' top='276' left='232'>OK</button>
+	<pict type='dlog' num='21' top='6' left='6'/>
+	<text name='title' size='large' top='6' left='50' width='300' height='17'>Map of Somewhere:</text>
+	<pict name='map' type='full' num='1100' top='28' left='50'/>
+</dialog>