message: Update chain_plugin.hpp
  Changing precision to core_symbol_precision per request
diff: @@ -98,7 +98,7 @@ public:
  //double participation_rate = 0;
  optional<string> server_version_string;
  string core_symbol;
  - uint64_t precision;
  + uint64_t core_symbol_precision;
  };
  get_info_results get_info(const get_info_params&) const;
  @@ -617,7 +617,7 @@ private:
  FC_REFLECT( eosio::chain_apis::permission, (perm_name)(parent)(required_auth) )
  FC_REFLECT(eosio::chain_apis::empty, )
  FC_REFLECT(eosio::chain_apis::read_only::get_info_results,
  -(server_version)(chain_id)(head_block_num)(last_irreversible_block_num)(last_irreversible_block_id)(head_block_id)(head_block_time)(head_block_producer)(virtual_block_cpu_limit)(virtual_block_net_limit)(block_cpu_limit)(block_net_limit)(server_version_string)(core_symbol)(precision) )
  +(server_version)(chain_id)(head_block_num)(last_irreversible_block_num)(last_irreversible_block_id)(head_block_id)(head_block_time)(head_block_producer)(virtual_block_cpu_limit)(virtual_block_net_limit)(block_cpu_limit)(block_net_limit)(server_version_string)(core_symbol)(core_symbol_precision) )
  FC_REFLECT(eosio::chain_apis::read_only::get_block_params, (block_num_or_id))
  FC_REFLECT(eosio::chain_apis::read_only::get_block_header_state_params, (block_num_or_id))
  