Hyper (precision) numeric data type

[iZ!]

hey all,
new version should work much faster

- optimized multiplication by another Hyper; it was calling the below mentioned routine before each Add operation
- removed unnecessary buffer-resizing statements called in a procedure prior to actual Add and Subtract operations
- slightly optimized Add and Subtract procedures themselves
- added option to skip boundary check altogether, e.g. hyp1.Add(hyp2, False)

At some point, I changed tactics - the +/- procedures now don't check the buffer's upper bound, it just flows until there's a remainder. But with new tactics came new mistakes :)