NSH: Separate command line parsing from command execution.  Add support for multiple, semicolone separated commands on each line

STM3240G-EVAL: Kernel mode board initialization can't run on the IDLE thread; needs its on initialization kernel thread

NxWM::CTouchscreen: Add CONFIG_NXWM_TOUCHSCREEN_DEVINIT to suppress attempts to initialize the touchscreen from NxWM in the kernel build

NxWM: Can now disable the NxConsole window.  STM3240G-EVAL knxwm: Disabled the NxConsole for now because there are issues with the kernel build.

NxWidgets server initialization must be performed in the kernel when NxWdigets is built in kernel mode

F103VC, F105, and F107:  Fix configuration and building of USB.  configs/viewtools-stm32f107:  Fix build for F103 and F107:  F103 has USB device; F107 has OTGFS

Viewtools netnsh configuration supports Telnet console; A framework for SD card and USB device support

Add logic to configure interrupt controller debug; Fix high priority, nested interrupt build problems

viewtool configuration will not support boad with STM32F103VC mounted; converted one stm3210e-eval configuration to use kconfig-frontends

Remove all configuration variable documentation from configs/README.txt and Docuemntation/NuttXPortingGuidle.html.  The current NuttX configuration is documented in Kconfig files and in Documentation/NuttXSonfigVariables.html.  The older configuration variable documentation is not being maintained and, hence, is a liability