[misc] refactor launch API and tensor constructor (#5666)

* [misc] remove config arg from initialize

* [misc] remove old tensor contrusctor

* [plugin] add npu support for ddp

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* [devops] fix doc test ci

* [test] fix test launch

* [doc] update launch doc

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

tests/test_shardformer/test_model/test_shard_opt.py

@@ -233,7 +233,6 @@ def run_opt_3d_test(test_config):
 def check_OPTModel(rank, world_size, port):
     disable_existing_loggers()
     colossalai.launch(
-        config={},
         rank=rank,
         world_size=world_size,
         host="localhost",
@@ -246,7 +245,6 @@ def check_OPTModel(rank, world_size, port):
 def check_opt_3d(rank, world_size, port):
     disable_existing_loggers()
     colossalai.launch(
-        config={},
         rank=rank,
         world_size=world_size,
         host="localhost",