Add support for High Performance Blockchain

homepage: https://hpb.io
block explorer: https://hpbscan.org
network statistics : https://hpbscan.org
git: https://github.com/hpb-project
slip0044 index : 269
chain ID: 269

src/tokens.c

@@ -1173,3 +1173,5 @@ const tokenDefinition_t const TOKENS_GOCHAIN[NUM_TOKENS_GOCHAIN] = {};
 const tokenDefinition_t const TOKENS_MIX[NUM_TOKENS_MIX] = {};
 
 const tokenDefinition_t const TOKENS_REOSC[NUM_TOKENS_REOSC] = {};
+
+const tokenDefinition_t const TOKENS_HPB[NUM_TOKENS_HPB] = {};