Add expected total reward to RPC "getblocktemplate".

Only works from V5 fork onward - returns 0 before that block.

src/rpc/core_rpc_server.cpp

@@ -883,7 +883,7 @@ namespace cryptonote
     block b = AUTO_VAL_INIT(b);
     cryptonote::blobdata blob_reserve;
     blob_reserve.resize(req.reserve_size, 0);
-    if(!m_core.get_block_template(b, acc, res.difficulty, res.height, blob_reserve))
+    if(!m_core.get_block_template(b, acc, res.difficulty, res.height, res.expected_reward, blob_reserve))
     {
       error_resp.code = CORE_RPC_ERROR_CODE_INTERNAL_ERROR;
       error_resp.message = "Internal error: failed to create block template";

src/rpc/core_rpc_server_commands_defs.h

@@ -49,7 +49,7 @@ namespace cryptonote
 // advance which version they will stop working with
 // Don't go over 32767 for any of these
 #define CORE_RPC_VERSION_MAJOR 1
-#define CORE_RPC_VERSION_MINOR 9
+#define CORE_RPC_VERSION_MINOR 10
 #define MAKE_CORE_RPC_VERSION(major,minor) (((major)<<16)|(minor))
 #define CORE_RPC_VERSION MAKE_CORE_RPC_VERSION(CORE_RPC_VERSION_MAJOR, CORE_RPC_VERSION_MINOR)
 
@@ -692,6 +692,7 @@ namespace cryptonote
       uint64_t difficulty;
       uint64_t height;
       uint64_t reserved_offset;
+      uint64_t expected_reward;
       std::string prev_hash;
       blobdata blocktemplate_blob;
       blobdata blockhashing_blob;
@@ -701,6 +702,7 @@ namespace cryptonote
         KV_SERIALIZE(difficulty)
         KV_SERIALIZE(height)
         KV_SERIALIZE(reserved_offset)
+        KV_SERIALIZE(expected_reward)
         KV_SERIALIZE(prev_hash)
         KV_SERIALIZE(blocktemplate_blob)
         KV_SERIALIZE(blockhashing_blob)