Update objecttypes.py

added samet_fund, credit_offer, credit_deal

Author: pi314x

bitsharesbase/objecttypes.py

@@ -21,4 +21,7 @@
 object_type["custom_authority"] = 17
 object_type["ticket"] = 18
 object_type["liquidity_pool"] = 19
-object_type["OBJECT_TYPE_COUNT"] = 19
+object_type["samet_fund"] = 20
+object_type["credit_offer"] = 21
+object_type["credit_deal"] = 22
+object_type["OBJECT_TYPE_COUNT"] = 22