fix(cmd): Use JSON for pretty-printing events/results

[kostko]

YAML uses a very verbose notation for printing byte arrays which are quite common in our data structures. Until we have proper pretty printing implementations for event/result structures, JSON produces nicer output.

Previous output:

...
=== Result of transaction 0 ===
Status: ok
Data:
  - 161
  - 98
  - 111
  - 107
  - 162
  - 100
  - 100
...
  - 197
  - 0
  - 0
  - 0
  - 0
  - 0
  - 0
  - 0

=== Events emitted by transaction 0 ===
Events: 2

  --- Event 0 ---
  Module: core
  Code:   1
  Data:
    - amount: 83625

  --- Event 1 ---
  Module: evm
  Code:   1
  Data:
    - address:
      - 252
      - 26
      - 219
      - 227
      - 133
      - 240
...

New output:

...
=== Result of transaction 0 ===
Status: ok
Data:
  "a1626f6ba2646461746155ee2dc55c7b823a0b2cf86eadd74e8d852030872c85656e6f6e63654f000000000011e1c500000000000000"

=== Events emitted by transaction 0 ===
Events: 2

  --- Event 0 ---
  Module: core
  Code:   1
  Data:
    [
      {
        "amount": 83625
      }
    ]

  --- Event 1 ---
  Module: evm
  Code:   1
  Data:
    [
      {
        "address": "fc1adbe385f0bd561d1d53c5a68891dee07efd17",
        "data": "0000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000002050726f6f66206f662063726f73732d636861696e20616e7943616c6c206d7367",
        "topics": [
          "398815baeb0820d3e2c52be1de829fc597863cd6cce7d84c712074b5027bc175"
        ]
      },
      {
        "address": "33c80d5492b04bfb94f2757fca88a2d7f49211e6",
        "data": "000000000000000000000000f13f0b44a46238ed3c127ea90a5a6d042ee4f60600000000000000000000000000000000000000000000000000000000000000e00000000000000000000000000000000000000000000000000000000000000061000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001600000000000000000000000000000000000000000000000000000000000000004000000000000000000000000000000000000000000000000000000000000018000000000000000000000000000000000000000000000000000000000000000600000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000002050726f6f66206f662063726f73732d636861696e20616e7943616c6c206d736700000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
        "topics": [
          "17dac14bf31c4070ebb2dc182fc25ae5df58f14162a7f24a65b103e22385af0d",
          "000000000000000000000000fc1adbe385f0bd561d1d53c5a68891dee07efd17"
        ]
      }
    ]

[matevz]

Awesome! I also tested reviewing Cipher blocks and everything works as expected!