[CK_TILE] Pooling FWD (Lwpck 3683) (#2956)

* Pooling 2D/3D with refernce

* Tests & cleanup

- added test for ppoling
- cleanup
- removed 2d example

* Comment resolution

- README added
- example target name rectified
- appropriate arg description and comments added

* clang-format

* appropriate blocksize calc

* modifications for future indexing addition

- instead of transforming views we now transform the descriptors, so
that the same descriptor can be re-used for index tensor in the future

* some basic fixes

* comment resolutions

* comment resolutions

---------

Co-authored-by: Illia Silin <98187287+illsilin@users.noreply.github.com>

example/ck_tile/36_pooling/README.md

@@ -0,0 +1,42 @@
+# Pooling Operator
+
+This folder contains example for the pooling operator using ck_tile tile-programming implementation. Currently the pooling kernel only supports 2D and 3D pooling.
+
+## build
+```
+# in the root of ck_tile
+mkdir build && cd build
+# you can replace <arch> with the appropriate architecture (for example gfx90a or gfx942) or leave it blank
+../script/cmake-ck-dev.sh  ../ <arch>
+# The 3D pooling example
+make tile_example_pool3d -j`nproc`
+```
+This will result in an executable `build/bin/tile_example_pool3d`
+
+## example
+```
+args:
+          -N    batch size (default:2)
+          -D    depth dimension (default:30)
+          -H    height dimension (default:30)
+          -W    width dimension (default:30)
+          -C    channel dimension (default:32)
+          -Z    pooling window depth (default:2)
+          -Y    pooling window height (default:2)
+          -X    pooling window width (default:2)
+         -Sz    window stride depth (default:2)
+         -Sy    window stride height (default:2)
+         -Sx    window stride width (default:2)
+         -Dz    window dilation depth (default:1)
+         -Dy    window dilation height (default:1)
+         -Dx    window dilation width (default:1)
+     -LeftPz    left padding depth (default:1)
+     -LeftPy    left padding height (default:1)
+     -LeftPx    left padding width (default:1)
+    -RightPz    right padding depth (default:1)
+    -RightPy    right padding height (default:1)
+    -RightPx    right padding width (default:1)
+          -v    0: No validation, 1: CPU validation (default:1)
+     -warmup    number of iterations before benchmark (default:0)
+     -repeat    number of iterations to benchmark (default:1)
+```