insurance: Add missing map export

* insurance.xml: Add map import as export.

core/insurance.xml

@@ -26,6 +26,7 @@
   <import package="base" />
   <import package="assert"        export="true" />
   <import package="convention"    export="true" />
+  <import package="map"           export="true" />
   <import package="numeric/round" export="true" />
   <import package="vector/cmatch" export="true" />