Add verbosity stream

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

Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
Add goodies for extended numerals

Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
Merge branch 'master' of https://github.com/leodemoura/lean
Add numerics/numeric_traits.cpp

Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
have separate cmake files for GMP and Tcmalloc