lualoader: Install all manpages

Now that a complete set is written, save for one describing loader.lua,
install all of them. This was not previously done as they were written to
hopefully avoid confusion as bits and pieces of the overall system were
undocumented.

stand/lua/Makefile

@@ -2,6 +2,16 @@
 
 .include <bsd.init.mk>
 
+MAN=	cli.lua.8 \
+	color.lua.8 \
+	config.lua.8 \
+	core.lua.8 \
+	drawer.lua.8 \
+	hook.lua.8 \
+	menu.lua.8 \
+	password.lua.8 \
+	screen.lua.8
+
 FILESDIR=	/boot/lua
 FILES=	cli.lua \
 	color.lua \