fixed a few incorrect statements
added structure and organization to main README to help people find
stuff when they're first starting
Change-Id: I6148f2e9bc63cbeaf5f2e40566bf9d274ed36aaa
the task allcsim will build everything
requires ntcore desktop to be built
also fixed Driverstation to match non-sim C++ API
Conflicts:
wpilibc/simulation/CMakeLists.txt
Change-Id: Id38141a5b48ed7fe064c7e6c8d2f618481b7e298