-drawing bug, nicer target blink, s(i/a)/<name> &c

removed longstanding drawing bug related to camera scrolling, cleaned up
the target/wmcursor code so it looks prettier, made spawnactor/item wm
cmd use definition names instead (easier than memorizing type-ids),
added addmod/removemod wm cmds and tp, made actors actually spawn with
their mp at full, and added so wm mode not only shows hex, but also
decimal coordinates