Charlie Jacobsen authored Jan 21, 2016 and Vikram Narayanan committed Oct 26, 2016

I wanted to do this first before re-factoring kliblcd, so I know
what I need to do.

This is a step toward unifying the old isolated and non-isolated
interfaces. The semantics of each function will be a bit different
depending on the execution context.

  -- address_spaces.h: from old types.h, with few changes
  -- boot_info.h: bootstrap page data; from old types.h; small
                  changes to struct
  -- create.h: LCD and kLCD creation; from old kliblcd.h; doc cleaned
               up and interface
  -- mem.h: unified memory interface; coalesces functions from old
            liblcd.h and kliblcd.h
  -- sync_ipc.h: unifies ipc and utcb headers
  -- syscall.h: same as before

Removes old capability and data store crap.

Also, fixes small bug for edge case in cap types.