Ensure that copy sequences can be passed as arguments

Ensure that copy sequences can be passed as arguments

Previously, automatic conversion from JS array to sequence copy
resource was not performed in the case where the array was passed as
a parameter to a QObject function invocation.  This commit adds code
to check if the parameter type is a sequence type - and if so, and if
the value is a variantlist, we convert it to a sequence of the
appropriate type.

Change-Id: I3cc3e2f95604bc71d1d8d237e1acffa1e03b78ba
Reviewed-by: Glenn Watson <glenn.watson@nokia.com>