Add toml config

core/chains/evm/config/toml/defaults/BTCC_Testnet.toml

@@ -0,0 +1,29 @@
+ChainID = '1029'
+# Finality Depth is insanely high (https://github.com/bttcprotocol/bttc/blob/master/params/network_params.go#L60) 
+FinalityDepth = 9000
+# blocks are generated every 2-4s 
+LogPollInterval = '2s'
+# Blocks are only emitted when a transaction happens / no empty blocks
+NoNewHeadsThreshold = '0'
+
+[GasEstimator]
+EIP1559DynamicFees = false
+
+
+[GasEstimator.BlockHistory]
+# how many blocks we want to keep in memory to calculate gas price
+# # Average block time of 2s
+BlockHistorySize = 24
+
+[Transactions]
+ResendAfterThreshold = '30s'
+
+[HeadTracker]
+# re-org for bttc is really high so we want to check for the block where reorg happens
+HistoryDepth = 500
+
+[NodePool]
+SyncThreshold = 10
+
+[OCR]
+ContractConfirmations = 1