Added cvdump tool to dump CodeView symbol information.

diff --git a/configure.in b/configure.in
index 1071257..ead21fa 100644
--- a/configure.in
+++ b/configure.in
@@ -1056,6 +1056,7 @@
 scheduler/Makefile
 server/Makefile
 tools/Makefile
+tools/cvdump/Makefile
 tools/wrc/Makefile
 tsx11/Makefile
 win32/Makefile