Add missing Transaction attributes

Add missing Transaction.{blockstampTime,hash,block_number,received} attributes in a way that it does not destroy the generation of Tx for sending.

As made for time attribute in !58 (fc30ac27).

changed milestone to %0.55.x

added ~341 enhancement labels

changed the description

assigned to @moul

mentioned in issue silkaj#22 (closed)

changed milestone to %0.56.0

unassigned @moul

changed milestone to %1.0.0

changed milestone to %0.60.0

changed milestone to %1.0.0

changed milestone to %Backlog

Concerning hash: Transaction.sha_hash is already available. Do we need anything more ?

Transaction.sha_hash() is a method (function defined in a class) not an attribute (variable defined in a class).

curl https://g1.duniter.org/blockchain/block/417600
[…]
 "transactions": [
    {
      "version": 10,
      "currency": "g1",
      "locktime": 0,
      "hash": "64091C68200FE2E524952B0FFA411B715833ED43F83BFB1528D3820C425B74EB",
      "blockstamp": "417598-00000014D8673249A2DD71571AD121CCF8B1EB2DDC6C6BC8C1737B4AECC9B184",
      "blockstampTime": 1619116268,
[…]

blockstampTime ,hash are still there, but block_number, and received seem to be gone, or they are in the raw format.

added TBR label