Add support for AENSv2.pointee, AENSv2.name types

[davidyuk]

depends on #258

closes #210

based on aeternity/aeternity#4056

AENSv2 in aesophia looks implemented in aeternity/aesophia#426.

This PR is supported by the Æternity Crypto Foundation

[hanssv]

There hasn't been any general demand for such a branch - but I had it locally - it is now pushed to aesophia_cli

[dincho]

To test it properly we need a version of aesophia_cli that supports AENSv2.

to be more specific, a released version after initial/draft tests :)

[dincho]

Thanks for the implementation @davidyuk it looks straight forward so far. Thanks to @hanssv for BC :)

[davidyuk]

As I understand, bytes(x) have a mandatory prefix of two bytes (FateTag.OBJECT, FateTag.OTYPE_BYTES), but this prefix looks missing in case of decoding AENSv2.name value with DataPr. The first two bytes get lost because of

aepp-calldata-js/src/Serializers/BytesSerializer.js

Line 19 in a70ea77

const [bytes, rest] = byteArraySerializer.deserializeStream(buffer.slice(2))

The issue aeternity/aesophia#498 looks related. I'm not sure how to proceed here.

[dincho]

#258 has been merged, feel free to rebase this PR to get it in as well