altcoin: Add Ferrite (MWEB deserializer)

[koh-gt]

Change deserializer from DeserializerSegWit to DeserializerLitecoin due to Ferrite MWEB softfork at height 150,000 after update.

Jul 13 05:15:47 ubuntu-virtual-machine electrumx_server[42601]:     raise ChainError(f'UTXO {hash_to_hex_str(tx_hash)} / {tx_idx:,d} not '
Jul 13 05:15:47 ubuntu-virtual-machine electrumx_server[42601]: electrumx.server.block_processor.ChainError: UTXO 2ed0a759b598218f8910046eb3b30cd7f585e080fd1c0e506d25c0db497ac135 / 0 not found in "h" table