* [PASS] Enhance LayoutTransform pass

* Fix

* Fix Compilation

* Refactor

* Refactor

* doc

* fix

* add file

* [PASS] Improve graph fusion

* Change fusion center to segment head

* Use 'master' to identity the schedule node

* Make things compact

* Fix

* [GRAPH] Add GraphHandle

* Move to apps/graph_executor

* [EXECUTOR] Improve LayoutTransform pass

* Remove offline params for now

* Small fix

* [EXECUTOR] Enable load executor remotely

* [EXECUTOR] Pipeline

* Pass bytearray directly

* Enable load dynamic library in rpc_server.py

* Fix

* lint

* Return Module from remote side directly

* Remove unused header file

* Fix

* fix

* [PASS] Layout transform pass

* Fix according to comment

* Fix

* Remove 'final' in GraphExecutor for extension

* Dynamic num of inputs/outputs for tvm_op