Codeowner addendum and fix to small model debugging script (#2076)

* Add github username to CODEOWNERS

* add import torch.distributed to small model debugging test script

* Replace torch.dist with deepspeed.com

CODEOWNERS

-*       @jeffra @samyam @tjruwase @ShadenSmith @conglongli @awan-10 @cli99 @eltonzheng @minjiaz @RezaYazdaniAminabadi @duli2012 @mrwyattii @yaozhewei @arashb @xiaoxiawu-microsoft
+*       @jeffra @samyam @tjruwase @ShadenSmith @conglongli @awan-10 @cli99 @eltonzheng @minjiaz @RezaYazdaniAminabadi @duli2012 @mrwyattii @yaozhewei @arashb @xiaoxiawu-microsoft @samadejacobs

tests/small_model_debugging/test_model.py

@@ -4,6 +4,7 @@ import argparse
 import torch
 import deepspeed
 from torch.utils.data.distributed import DistributedSampler
+import deepspeed.comm as dist
 
 
 class SimpleModel(torch.nn.Module):