metatype 0.1.2.1

Implementation of base dict types for metaformat versions.

# Metatype

Implements the base metaformat types for different versions of metaformat.

This package provides classes derived from base `dict` class, with modified constructors, in order to validate represent data items following metaformat's specific version (specific metaformats).


It is organized as follows:


```
metatype
metatype
mft
<N>
rfc
<N>
iso
<N>
```