XRPrimer 0.7.0 Release Notes:

Highlights:

Add synbody_utils.py and exr_reader.py module to help with using SynBody dataset.
Support points and lines visualization by OpenCV and by Matplotlib.
Improve external dependencies by splitting external and project build.
Update dockerfiles, build scripts and docker images.

Add synbody_utils.py and exr_reader.py module to help with using SynBody dataset.
Add points and lines visualization by OpenCV and by Matplotlib, with features such as PointPalette and LinePalette for visualization backends sharing the same definition of data.
Add fast undistortion in Python.
Add Keypoints, Limbs and keypoints_convention from XRMoCap.
Add world convention for 3D spaces.
Add VideoReader to ffmpeg_utils in Python. Together with VideoWriter, now we can visualize a really long video on a machine with poor RAM.

Improve external dependencies by splitting external and project build, building for source or downloading dependencies when first run. External dependencies from different sources are used in the same way.
Upgrade OpenCV(C++dependency) to 4.6.0.
Improve python version constraint in setup.py and requirements, making torch unnecessary and allowing classes like cameras in data_stuctures to be imported in a torch absent environment.
Update dockerfiles, build scripts and docker images.

Update workflow OS from ubt18 to ubt22/ubt20, since ubt18 is no longer supported by GitHub.
Add build_cpp stage in GitHub workflow to build C++ code.
Update trigger conditions for publish workflow, with either branch name or tag working.
Improve publish process inside a new manylinux2014 docker container, building wheel file with rebuilt conan packages, repairing wheel file with auditwheel, and uploading with twine.

Fix incorrect image data copy.
Fix wrong calibration input variable reported by issue-33.
Fix wrong building directory settings in setup.py, now it copies xrprimer_cpp*.so from self.cmake_output_lib to self.build_lib.
Update test data at aliyun-oss and fixed wrong subfolder name causing error.
Replace twine username from __token__ to secrets.PYPI_USERNAME in github actions, which works well in forked repo.