feat(split-stack): add support for split-stacks (no more stackoverflows)

Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
chore(util): remove dead file

Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
fix(doc/make/split-stack): typos

Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>