* [RUNTIME] Enable ext_dev type for quick plugin of device

* [TEST] Update testcase to cover all computation

* [DOCS] How to deploy TVM Modules

* More comments

* [RUNTIME] Enable extension type to PackedFunc.

* More comments

* [DOCS][APP] Add Example for C++ deployment

* fix lint

* [APP] Android RPC first version

* [APP] Android RPC build jni automatically

* [APP] Android OpenCL RPC tested on real devices

* [APP] optimize android app interface. add ndk compile tool

* add ndk compile tool

* [APP] fix android app thread crash; add android test script

* [APP] android app - show alert dialog and disconnect when error occurs

* fix ndk build script code lint

* fix ndk build default argument

* ndk script build remove shell=True. disable android app screen orientation

* [EXECUTOR] Split graph_executor to header file and (runtime) source file

* Fix

* [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] Fix bug and improve

* [EXECUTOR] Enhance test case

* [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

* [REFACTOR] collections->container, RPC returns func, time_evaluator returns struct

* fix executor

* [EXECUTOR] Save/Load Params

* [EXECUTOR] Improve Save/Load, fix Makefile

* [EXECUTOR] Make save independent with executor

* [PASS] Layout transform pass

* Fix according to comment

* Fix

* Remove 'final' in GraphExecutor for extension

* Dynamic num of inputs/outputs for tvm_op