Added TF resize_bilinear behaviour alignment

[LupusSanctus]

Merge with extra: opencv/opencv_extra#825

Fixes #18721: TF resize bilinear upsampling layer shift

Added half_pixel_centers parameter to cover align_corners=False, half_pixel_centers=True case for TF resize_bilinear.

Pull Request Readiness Checklist

See details at https://github.com/opencv/opencv/wiki/How_to_contribute#making-a-good-pull-request

• I agree to contribute to the project under Apache 2 License.
• To the best of my knowledge, the proposed patch is not based on a code under GPL or other license that is incompatible with OpenCV
• The PR is proposed to proper branch
• There is reference to original bug report and related work
• There is accuracy test, performance test and test data in opencv_extra repository, if applicable
  Patch to opencv_extra has the same branch name.
• The feature is well documented and sample code can be built with the project CMake

force_builders=Custom,Custom Win,Custom Mac
build_image:Custom=ubuntu-openvino-2021.1.0:20.04
build_image:Custom Win=openvino-2021.1.0
build_image:Custom Mac=openvino-2021.1.0

test_modules:Custom=dnn,python2,python3,java
test_modules:Custom Win=dnn,python2,python3,java
test_modules:Custom Mac=dnn,python2,python3,java

buildworker:Custom=linux-1
# disabled due high memory usage: test_opencl:Custom=ON
test_opencl:Custom=OFF
test_bigdata:Custom=1
test_filter:Custom=*

[dkurt]

Take a look at failed test: https://pullrequest.opencv.org/buildbot/builders/precommit_custom_windows/builds/1719. You may skip it for specific backend or implement in initNgraph method

[dkurt]

@LupusSanctus , please check comments at opencv/opencv_extra#825

[dkurt]

👍 Thank you!

[alalek]

Thank you for contribution!

This patch should go into 3.4 branch first.
We will merge changes from 3.4 into master regularly (weekly/bi-weekly).

Please:

• change "base" branch of this PR: master => 3.4 (use "Edit" button near PR title)
• rebase your commits from master onto 3.4 branch. For example:
  git rebase -i --onto upstream/3.4 upstream/master
  (check list of your commits, save and quit (Esc + "wq" + Enter)
  where upstream is configured by following this GitHub guide and fetched (git fetch upstream).
• push rebased commits into source branch of your fork (with --force option)

Note: no needs to re-open PR, apply changes "inplace".

Also please make similar steps for opencv_extra's PR.

[LupusSanctus]

@alalek, the commit was rebased onto 3.4 branch.