add max inputs count to config

Author: jeffro256

src/carrot_core/config.h

@@ -69,4 +69,5 @@ static constexpr const unsigned char CARROT_DOMAIN_SEP_SUBADDRESS_SCALAR[] = "Ca
 // Carrot misc constants
 static constexpr const unsigned int CARROT_MIN_TX_OUTPUTS = 2;
 static constexpr const unsigned int CARROT_MAX_TX_OUTPUTS = 16;
+static constexpr const unsigned int CARROT_MAX_TX_INPUTS = 16;
 } //namespace carrot