Add the missing .hf file

Author: abitmore

libraries/chain/hardfork.d/CORE_2103.hf

@@ -0,0 +1,5 @@
+// bitshares-core issue #2103 250M BTS supply
+#ifndef HARDFORK_CORE_2103_TIME
+#define HARDFORK_CORE_2103_TIME (fc::time_point_sec( 1600000000 ) ) // Sep 2020
+#define HARDFORK_CORE_2103_BALANCE_ID 56720 // 1.15.56720
+#endif