Add leak tracking support to Leash

Signed-off-by: Kevin Wasserman <kevin.wasserman@painless-security.com>

https://github.com/krb5/krb5/commit/9d7ce5070d6d5f8390b941cdb617c670f1bf0989
Author: Kevin Wasserman <kevin.wasserman@painless-security.com>
Committer: Ben Kaduk <kaduk@mit.edu>
Commit: 9d7ce5070d6d5f8390b941cdb617c670f1bf0989
Branch: master
 src/windows/leash/Leash.cpp |   12 ++++++++++++
 1 files changed, 12 insertions(+), 0 deletions(-)