Add new "walk" command options to list processes and modref's.

diff --git a/debugger/debug.l b/debugger/debug.l
index a77b17d..669f652 100644
--- a/debugger/debug.l
+++ b/debugger/debug.l
@@ -156,6 +156,8 @@
 <INFO_CMD,WALK_CMD>class|clas|cla                  { return tCLASS; }
 <INFO_CMD,WALK_CMD>module|modul|modu|mod  { return tMODULE; }
 <INFO_CMD,WALK_CMD>queue|queu|que			{ return tQUEUE; }
+<INFO_CMD,WALK_CMD>process|proces|proce|proc   		{ return tPROCESS; }
+<INFO_CMD,WALK_CMD>modref|modre|modr			{ return tMODREF; }
 <INFO_CMD>registers|regs|reg|re		{ return tREGS; }
 <INFO_CMD>segments|segment|segm|seg|se	{ return tSEGMENTS; }
 <INFO_CMD>stack|stac|sta|st     		{ return tSTACK; }