fix transaction input json encoding

[ayrat555]

fixes

2019-07-09T15:39:42.194 [error] GenServer BlockScoutWeb.RealtimeEventHandler terminating
** (FunctionClauseError) no function clause matching in Poison.Encoder.BitString.chunk_size/3
    (poison) lib/poison/encoder.ex:139: Poison.Encoder.BitString.chunk_size(<<128, 96, 64, 82, 96, 4, 54, 16, 97, 0, 219, 87, 96, 0, 53, 124, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 144, 4, 99, 255, 255, ...>>, nil, 1)
    (poison) lib/poison/encoder.ex:134: Poison.Encoder.BitString.escape/2
    (poison) lib/poison/encoder.ex:88: Poison.Encoder.BitString.encode/2
    (poison) lib/poison/encoder.ex:227: anonymous fn/4 in Poison.Encoder.Map.encode/3
    (poison) lib/poison/encoder.ex:228: Poison.Encoder.Map."-encode/3-lists^foldl/2-0-"/3
    (poison) lib/poison/encoder.ex:228: Poison.Encoder.Map.encode/3
    (poison) lib/poison/encoder.ex:227: anonymous fn/4 in Poison.Encoder.Map.encode/3
    (poison) lib/poison/encoder.ex:228: Poison.Encoder.Map."-encode/3-lists^foldl/2-0-"/3
Last message: {:chain_event, :transactions, :realtime, [%Explorer.Chain.Transaction{cumulative_gas_used: nil, logs: #Ecto.Association.NotLoaded<association :logs is not loaded>, v: #Decimal<236>, from_address: #Ecto.Association.NotLoaded<association :from_address is not loaded>, forks: #Ecto.Association.NotLoaded<association :forks is not loaded>, __meta__: #Ecto.Schema.Metadata<:loaded, "transactions">, from_address_hash: %Explorer.Chain.Hash{byte_count: 20, bytes: <<210, 30, 179, 65, 213, 26, 95, 48, 217, 168, 193, 152, 25, 183, 87, 7, 200, 248, 1, 64>>}, nonce: 47, hash: %Explorer.Chain.Hash{byte_count: 32, bytes: <<178, 49, 100, 197, 109, 28, 224, 42, 223, 67, 75, 246, 206, 114, 137, 203, 80, 122, 106, 146, 132, 247, 172, 94, 46, 169, 59, 117, 244, 141, 34, 190>>}, s: #Decimal<19515337392081919860089388580137965793002383404738727612092998645409469442506>, value: #Explorer.Chain.Wei<0>, block_number: nil, gas: #Decimal<100000>, r: #Decimal<102217967354370895151243546254428380050887774153609442160504420085353768501203>, inserted_at: #DateTime<2019-07-09 15:39:40.438511Z>, input: %Explorer.Chain.Data{bytes: <<169, 5, 156, 187, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 193, 108, 45, 196, 42, 228, 149, 239, 119, 191, 128, 248, ...>>}, created_contract_address: #Ecto.Association.NotLoaded<association :created_contract_address is not loaded>, created_contract_address_hash: nil, internal_transactions: #Ecto.Association.NotLoaded<association :internal_transactions is not loaded>, error: nil, internal_transactions_indexed_at: nil, block_hash: nil, gas_used: nil, token_transfers: #Ecto.Association.NotLoaded<association :token_transfers is not loaded>, updated_at: #DateTime<2019-07-09 15:39:40.438511Z>, uncles: #Ecto.Association.NotLoaded<association :uncles is not loaded>, status: nil, to_address: #Ecto.Association.NotLoaded<association :to_address is not loaded>, to_address_hash: %Explorer.Chain.Hash{byte_count: 20, bytes: <<237, 243, 234, 173, 135, 42, 182, 84, 42, 107, 19, 195, 33, 222, ...>>}, index: nil, gas_price: #Explorer.Chain.Wei<10000000000>, block: #Ecto.Association.NotLoaded<association :block is not loaded>, created_contract_code_indexed_at: nil, old_block_hash: nil, earliest_processing_start: #DateTime<2019-07-09 15:39:40.430412Z>}]}
State: []

Motivation

We didn't define encoder for Data

Changelog

• fix transaction input json encoding

[coveralls]

Pull Request Test Coverage Report for Build db7c8f10-22a6-40ec-ac25-e18850839133

• 2 of 4 (50.0%) changed or added relevant lines in 1 file are covered.
• 138 unchanged lines in 12 files lost coverage.
• Overall coverage increased (+0.02%) to 80.952%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
apps/explorer/lib/explorer/chain/data.ex	2	4	50.0%

Files with Coverage Reduction	New Missed Lines	%
apps/explorer/lib/explorer/chain/smart_contract.ex	1	50.0%
apps/indexer/lib/indexer/fetcher/coin_balance_on_demand.ex	1	96.3%
apps/block_scout_web/lib/block_scout_web/notifier.ex	2	95.74%
apps/explorer/lib/explorer/chain/address.ex	2	93.94%
apps/block_scout_web/lib/block_scout_web/router.ex	3	81.82%
apps/block_scout_web/lib/block_scout_web/controllers/address_contract_verification_controller.ex	3	66.67%
apps/block_scout_web/lib/block_scout_web/controllers/address_validation_controller.ex	6	0.0%
apps/explorer/lib/explorer/market/market.ex	8	21.43%
apps/indexer/lib/indexer/block/fetcher.ex	8	88.31%
apps/block_scout_web/lib/block_scout_web/channels/address_channel.ex	10	50.0%

Totals
Change from base Build 6013ba72-a286-4c3e-8ae1-a3b4d19289de:	0.02%
Covered Lines:	5172
Relevant Lines:	6389

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💛 - Coveralls