applet.interface.analyzer: modify to use port groups

applet.audio.yamaha_opx: modify to use port groups

applet.video.rgb_input: modify to use port groups

applet.video.hub75_output: modify to use port groups

applet.interface.swd_openocd: modify to use port groups

applet.video.vga_output: modify to use port groups

applet.interface.sbw_probe: modify to use port groups

manual: be a little more concise, and more specific around glasgow safe

glasgow.applet: be more precise about where applets come from, and do not mention OoT applets

docs/use/basic: AP style suggests a space surrounding emdashes