Import basic_any
Currently, there're no needs to be virtual in Table.
Add singleton_get, and use it for static/dynamic table.
reification => reify
Add dynamic cast from different any, based on type_info.
Fix README
Import clog
Add more iterators
Add data and type_info, to support operations of any and type.
Refine CLOG

Add EveryProgress

Turn CLOG_CHECK off when passing.