Initial import of p5-Hash-Merge version 0.10 in the NetBSD Packages

Initial import of p5-Hash-Merge version 0.10 in the NetBSD Packages
Collection.

The Perl 5 module Hash::Merge merges two arbitrarily deep hashes
into a single hash. That is, at any level, it will add non-conflicting
key-value pairs from one hash to the other, and follows a set of
specific rules when there are key value conflicts.