Vectors are not read properly from archives

[olafklingt]

Vectors are not read from archive because the _ArrayOverwrite primitive fails.
_ArrayOverwrite expects arrays of the same type.
A solution that worked for me was to add this function to the AbstractVector Class. Unfortunately it makes the Archive much slower to be read.

`

overWrite { arg aCollection, pos=0;

	var array, grow;

	// _ArrayOverwrite

	// ^this.primitiveFailed

	array = this.growClear(pos + aCollection.size - this.size);

	grow = pos + aCollection.size - this.size;

	if (grow > 0, { array = this ++ this.class.newClear(grow); },{ array = this });

	aCollection.do({ arg item, i; array.put(pos + i, item); });

	^array

}

`