Reworked the "port" and "noport" label type designations in the

tech file to correct the underlying problem with the SkyWater
sky130 process in which a different layer/purpose pair is used
for TEXTTYPE and DATATYPE for the same layer.  Previously, all
output from magic writes the same pair for both when writing a
port label.  The new method preserves existing syntax, although
there are some differences based on what order the "port"
statement appears relative to other types for the same layer.

doc/html/writeall.html

@@ -65,17 +65,17 @@ Write out all modified cells to disk
         </CENTER> 
       </BLOCKQUOTE>
 
-      With the option <B>write force</B>, the command writes all cells
+      With the option <B>writeall force</B>, the command writes all cells
       in the hierarchy with no prompting.  If one or more cell names
       follows <B>write force</B>, the cells listed will be written 
       (action "write") and all other cells will be ignored (action
       "skip"). <P>
 
-      With the option <B>write modified</B>, the command writes all
+      With the option <B>writeall modified</B>, the command writes all
       cells in the hierarchy which have been modified, ignoring those
       cells marked as needing only a bounding box or timestamp update. <P>
 
-      With the option <B>write noupdate</B>, the command writes all
+      With the option <B>writeall noupdate</B>, the command writes all
       cells in the hierarchy like it would for <B>write force</B>, but
       it does not update timestamps. <P>