fix: correct amount calculation for self-transfer transactions in BTC…#890

Linhead wants to merge 5 commits intodevAdamant-im/adamant-im:devfrom

bug/incorrect-amount-in-btc-tx-sending-to-own-addressAdamant-im/adamant-im:bug/incorrect-amount-in-btc-tx-sending-to-own-addressCopy head branch name to clipboard