Creating Arrays and PoolArrays

[geekrelief]

Am I missing something or should there be an easier way to define Arrays and PoolArrays?

I had to do this

newPoolVector2Array(newArray(a.toVariant(), b.toVariant(), c.toVariant()))

which looks ugly.

I noticed the pool arrays only takes an Array, and Array only takes varargs[Variant] or an openarray[Variant]. So I modified Array's newArray to

proc newArray*(s: varargs[Variant, `newVariant`]): Array

and added new constructors for the pool arrays so I can do call:

newPoolVector2Array(a, b, c)

I can make a PR for this.

[geekrelief]

PR #100 cleans this up.