Add jemalloc and tcmalloc to the image build. Not used by default.  To use:   * Set LD_PRELOAD=/usr/lib/libtcmalloc_minimal.so.4   * or  LD_PRELOAD=/usr/lib/x86_64-linux-gnu/libjemalloc.so.1 in your container startup environment.
Add jemalloc and tcmalloc to the image build.
Not used by default.  To use:
  * Set LD_PRELOAD=/usr/lib/libtcmalloc_minimal.so.4
  * or  LD_PRELOAD=/usr/lib/x86_64-linux-gnu/libjemalloc.so.1
in your container startup environment.

Signed-off-by: Jacques Grove <cd08d3adda01607dd857ba479d6e291b9b358911@gmail.com>

mahak/vitess,tinyspeck/vitess,vitessio/vitess,vitessio/vitess,mahak/vitess,mahak/vitess,vitessio/vitess,vitessio/vitess,vitessio/vitess,vitessio/vitess,tinyspeck/vitess,tinyspeck/vitess,mahak/vitess,mahak/vitess,tinyspeck/vitess,mahak/vitess,vitessio/vitess,tinyspeck/vitess,vitessio/vitess,tinyspeck/vitess,mahak/vitess,mahak/vitess,tinyspeck/vitess