[doc] licences
Disable graphs for now
licences and place for otshell utils
[extern] otshell utils code
[extern] imported more parts for utils
fix avg block size
CMake finds levelDB
Added missing cmake module for LevelDB
Add otshell_utils library to project
Added missing CMakeLists for otshell
[ok] integrated with logs
[dbg] using log channels for net
[ok] logging more about network speed/limit, to channels
set limit rate
limit rate