If write buffering is enabled, then it is necessary to release the write buffer resources (callback structure) when the socket is closed

NSH can not handle command arguments that are concatenations of constant strings, command output, application program output, and environment varaible values.

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

NSH: Code expects CONFIG_NSH_DRIPADDR and CONFIG_NSH_NETMASK even if DHCPC is necessary.  For now, just removed the dependency on DHCPC in the Kconfig file, but more thought is needed.

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