[Arith] Inverse affine map (apache#402)

* [Arith] Inverse affine map

* Update iter_affine_map.h

* Update iter_affine_map.h

* Update iter_affine_map.py

* Topology order visit

* doc

* fix

* address comments

Author: vinx13

tests/python/unittest/test_arith_iter_affine_map.py

@@ -18,6 +18,7 @@
 import tvm.testing
 from tvm import te
 from tvm.tir import floormod, floordiv
+from tvm.topi.image.resize import resize_bilinear
 
 
 def convert_division(divisions):