Importing crypto libraries

- crypto/external/bsd/heimdal
 - crypto/external/bsd/libsaslc
 - crypto/external/bsd/netpgp
 - crypto/external/bsd/openssl

Change-Id: I91dbf05f33e637edf5b9bb408d5baddd7ba8cf75

etc/mtree/NetBSD.dist.base

@@ -77,6 +77,8 @@
 ./usr/include/msdosfs
 ./usr/include/net
 ./usr/include/net/gen
+./usr/include/netpgp
+./usr/include/openssl
 ./usr/include/ppath
 ./usr/include/prop
 ./usr/include/protocols
@@ -134,6 +136,9 @@
 ./usr/share/doc/usd/04.csh
 ./usr/share/doc/usd/30.rogue
 ./usr/share/examples
+./usr/share/examples/libsaslc
+./usr/share/examples/libsaslc/mech
+./usr/share/examples/openssl
 ./usr/share/examples/tmux
 ./usr/share/info
 ./usr/share/games