added data2row.
data2row allow to replace SQL.
added doc of data2row.
Trim get_inflator / get_deflator from POD.

get_inflator() and get_deflator() are not implemented.
Change add_(?:inf|def)lator from set_(?:inf|def)lator in POD.

Teng::Schema::Table#set_inflator() (and that for deflator) are not implemented.
Instead, add_inflator() and add_deflator() are defined.
s/data2row/new_row_from_hash/g
Merge pull request #116 from karupanerura/feature/data2row

Feature/data2row