apps/graphics/ft80x:  Add support for reading/writing multiple registers.  Add interface to obtain the touchscreen transform matrix.  apps/examples/ft80x:  Add more co-processor demos.

    apps/examples/ft80x:  Add another co-processor demo
    ft80x: Add a few more debug message.

    apps/graphics/ft80x:  Replace polling logic with gentler signal logic when waitinf for the CMD FIFO to become empty.
    apps/examples/ft80x:  Add first co-processor example.
    apps/graphics:  Extend library to manage display lists either in display memory (RAM DL) or provided directly to th co-processor FIFO (RAM CMD).
    apps/examples/ft80x:  Some minor clean-up.  Trivial changes for coprocessor support.

Added ECANCELED condition to DEBUGASSERT-s checking sem_wait result

Approved-by: Gregory Nutt <gnutt@nuttx.org>

apps/graphics/ft80x and apps/examples/ft80x:  Fix a few compile-relate issues introduced with last merge.

    apps/graphics/ft80x:  Add support for accessing graphics ram.  apps/examples/ft80x:  Add more primitive graphics demos.
    apps/examples/ft80x:  Add a couple more demos of primitives.  Use new ft80x_dl_create() to simplify.
    apps/graphics/ft80x:  Add ft80x_dl_create() which simplies writing of very simple display lists.

    apps/examples/ft80x:  Add one display example.  Many more are needed but this is enough to get started with testing (when I eventually have hardware).
    apps/examples/ft80x:  Add the bare framework for a test of the FT80x

apps/graphics/ft80x:  Add the beginning of FT80x support library.  So far consists only of some display list helpers.

apps/nshlib:  Fix compile error when CONFIG_NSH_DISABLESCRIPT is not defined.  The field np_flags does not exist if scripting is disabled.

system/stackmonitor:  Re-design the stack monitor so that it does not make forbidden calls directly into the OS, breaking the portable POSIX OS interface.  It now properly uses the PROCFS file system to glean information about stack usage.

Fix documentation mistake about standalone problem

Approved-by: Gregory Nutt <gnutt@nuttx.org>

I guess author meant "standalone program" not "standalone problem" ?

Then, it was replicated elsewhere in code base,
and fixed accordingly with this patch.

Signed-off-by: Philippe Coval <philippe.coval@osg.samsung.com>

apps/netutils/netlib: Add default route in netlib_set_dripv4addr()

Approved-by: Gregory Nutt <gnutt@nuttx.org>

Signed-off-by: Masayuki Ishikawa <Masayuki.Ishikawa@jp.sony.com>

apps/examples/lvgldemo:  Remove references to CONFIG_EXAMPLES_LGVLDEMO_ARCHINIT (which was never defined anyway) and to all references to board control.  The board bringup logic must register the touchscreen driver.  BOARDIOC_TSCTEST_SETUP is deprecated.

    apps/examples/lvgldemo:  Fix up some include paths
    apps/examples/lvgldemo:  The last final now conforms to the NuttX coding style.
    apps/graphics/littlevgl:  Two more files are closer to the NuttX coding style.
    apps/graphics/littlevgl:  Two more files are closer to the NuttX coding style.
    apps/examples/lvgldemo:  Three more files are closer to the NuttX coding style.
    apps/examples/lvgldemo:  Two more files are closer to the NuttX coding style.
    apps/examples/lvgldemo:  Two more files are closer to the NuttX coding style.
    Add include/graphics/.gitignore
    apps/include/graphics:  Remove lvgl.h.  graphics/littlevgl/Makefile now copies the file into position.
    apps/graphics/littlevgl:  Add .gitignore file
    apps/graphics/littlevgl:  Most of these files follow the coding style now.
    apps/graphics/littlevgl:  This gets a couple of files closer to the NuttX coding style.
    apps/examples/lvgldemo:  Add lvgldemo example
    apps/graphics/littlevgl:  Add littlevgl library

Revert "apps/nshlib: restore space delimiter that was removed in last change to the NSH echo command."

This reverts commit 7cdf9b07.

apps/nshlib:  truncate command will now use ftruncate (vs. truncate) if it had to create the file with creat().