* Fix boundary check

* Add unittest

* [IR] Change pragma scope convention, enable pass unroll option via pragma

* add coverage test

* add explicit unroll as option

* modified schedule_dataflow_rewrite.cc to fix losing tensor problem

* modified schedule_dataflow_rewrite.cc for lint scan

* modified schedule_dataflow_rewrite.cc for lint scan

* using tensor's value_index to index output of stage op

* improved conv2d for last group of workloads

* conv2d_nchw improved on 14_256_256 and 56_64_128

* [SCHEDULE] Enahance cache_write to enable layout change.

* more tests

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

* fix executor

* Support for batch ComputeOp

* Support for batch ComputeOp

* Fix CrossThreadReduction

* Fix lint

* Add UpdateArray, remove support for batch reduce

* Tuple input support for reduce

* rfactor works with multiple reducer; support multiple reducers with different types

* Small fix

* Small fix

* Change return type of rfactor to Array<Expr>

* Fix lint

* Improve

* Add tutorial

* Improve tutorial

* Improve tutorial

* [DOC] Initial doc system

* Migrate API

* Update docs

* [FUSION] add Fusion(Schedule)

* [FUSION] rename to AutoFuseEwise, detect whether the stage has been scheduled

* [FUSION] change to visitor pattern

* [FUSION] rename filename

* [FUSION] fine-tune the interface

* [FUSION] typo

* move elem_wise to schedule

* rename test function

[TEST/PYTHON] Add unittest folder, add a build pipeline. Rename Buffer.ptr to Buffer.data to be consistent with Array. (#29)

* [LANG] Change Schedule->Stage, Use Schedule for global schedule

* add numpy as dep

* add numpy installation, temporary disable osx

* [PASS] Schedule Ops init working version

* bugfix in PassUp