Add local headers to SOURCES for `make dist`.
Add local headers to SOURCES for `make dist`.

RojavaCrypto/libbitcoin-server,tuomassiren/libbitcoin-server,RojavaCrypto/libbitcoin-server,libmetrocoin/libmetrocoin-server,tuomassiren/libbitcoin-server,libmetrocoin/libmetrocoin-server,RojavaCrypto/libbitcoin-server,libmetrocoin/libmetrocoin-server,tuomassiren/libbitcoin-server