test: Add functional test for bitcoin-chainstate

Adds basic coverage for successfully validating a mainnet block as well
as some duplicate and invalid data.

test/config.ini.in

@@ -19,6 +19,7 @@ RPCAUTH=@abs_top_srcdir@/share/rpcauth/rpcauth.py
 @USE_BDB_TRUE@USE_BDB=true
 @BUILD_BITCOIN_CLI_TRUE@ENABLE_CLI=true
 @BUILD_BITCOIN_UTIL_TRUE@ENABLE_BITCOIN_UTIL=true
+@BUILD_BITCOIN_CHAINSTATE_TRUE@ENABLE_BITCOIN_CHAINSTATE=true
 @BUILD_BITCOIN_WALLET_TRUE@ENABLE_WALLET_TOOL=true
 @BUILD_BITCOIND_TRUE@ENABLE_BITCOIND=true
 @ENABLE_FUZZ_BINARY_TRUE@ENABLE_FUZZ_BINARY=true