these were pretty much just pointless sugar for something that
can be better achieved with ordinary variadics and an extra call
(which is what it did, except in VM)
the user can now define commands '//ivar', '//fvar' and '//svar'
which take identity (which is the variable) as the first argument
followed by any number of user defined arguments with types (one
can use the N argument type to check argument count, and when no
value arguments are provided, print the variable); this allows us
to implement different styles of variable setting without the
interpreter itself knowing about it, as well as ditch all the
stuff with overridden vars and hex vars and whatnot since this is
all specific to the engine and has no place in here
there is still leftover code remaining, which will get cleaned up
afterwards...
also adjust the bytecode appropriately, now you can call commands
with an unlimited number of args and aliases with max 32 args,
extra args will be ignored
Daniel Kolesa
Daniel Kolesa