Document syscalls used
Add link to RTFD
Move the NodeSandbox class definition into its own header
Move DirentBuilder to its own files
Add support for other dirent types
Expose Sandbox VFS
Start implementing nodejs sandbox VFS API
Rewrite virtual/real FD mapping to be less ambiguous
Implement lseek
Use std::vector instead of malloc(char) to fix buffer overflow
Implement write and access
Permit non-virtual FDs to go around the VFS layer
Move chdir handling into VFS
Set contract WD to /contract/
Split out Filesystem classes to their own files
documentation++
Simplify code in do_open{,at} and properly handle flags
Implement fstat/lstat
Handle special case of . in getFilesystem
Fix overflows and error handling in read and getdents