Added simple "switchqos" NOX application.

	modified:   configure.ac.in
	new file:   src/nox/coreapps/switchqos/Makefile.am
	new file:   src/nox/coreapps/switchqos/Makefile.in
	new file:   src/nox/coreapps/switchqos/meta.json
	new file:   src/nox/coreapps/switchqos/switchqos.cc