modify fl_distribute_transpiler.py to support adam optimizer (resolved #27).

paddle_fl/core/strategy/fl_distribute_transpiler.py

@@ -691,7 +691,7 @@ class FLDistributeTranspiler(object):
         opti_to_param = dict()
         param_to_opti = dict()
         for op in self.optimize_ops:
-            if op.type == "sgd":
+            if (op.type == "sgd") or (op.type == "adam"):
                 origin_name = op.output("ParamOut")
                 var = self.origin_program.global_block().var(origin_name[0])
                 new_var_name = "%s.opti.trainer_%d" % (origin_name[0],