Release v4.0.8 (with Sigma v4.0.5 and ergo-wallet v4.0.24)

What's Changed

• Explorer API: Add sortDirection to getApiV1BoxesUnspentByaddressP1 by @MrStahlfelge in #136
• BoxOperations refactoring, add way to ignore boxes spent in mempool for box collection by @MrStahlfelge in #137
• New Accessor Methods by @K-Singh in #140
• Making public get unsigne dtx for UnsignedTransactionImpl by @dav009 in #138
• BoxOperations: Consider amount for change box by @MrStahlfelge in #141
• BoxOperations: provide method preparing TransactionBuilder with fee, inputs and change address by @MrStahlfelge in #142
• Set of small additions by @MrStahlfelge in #144
• Eip4 Token support by @MrStahlfelge in #134
• Check if reported network type matches given network type by @MrStahlfelge in #147
• Add Address.getErgoContract convenience method by @MrStahlfelge in #145
• Save fat jar for releases by @MrStahlfelge in #146
• Make verifySignature static on ErgoProver by @MrStahlfelge in #148
• Fix Explorer API getApiV1Blocks by @MrStahlfelge in #150
• Introduce Transaction interface, fix Java 7 compability by @MrStahlfelge in #151
• Fix UnsignedTransactionImpl reporting wrong outputs by @MrStahlfelge in #152
• Release v4.0.8 (with Sigma v4.0.5 and ergo-wallet v4.0.24) by @aslesarenko in #153

Related PR: #153

Full Changelog: v4.0.7...v4.0.8