Merge branch 'master' into dev--snapshot-I0

.github/ISSUE_TEMPLATE/bug_report.md

.github/ISSUE_TEMPLATE/feature_request.md

.github/workflows/Build.yml

.github/workflows/generate_reference_test_data.yml

.gitignore

CONTRIBUTORS

INSTALL_CMAKE.md

LICENSE

Makefile

README.md

decomp2d/io.f90

decomp2d/io_read_inflow.f90

docs/3D_VIEW.png

docs/index.rst

docs/pages/cases/Channel-flow.rst

docs/pages/cases/Cylinder.rst

docs/pages/cases/Lock-exchange.rst

docs/pages/cases/Mixing-layer.rst

docs/pages/cases/Periodic-hill.rst

docs/pages/cases/Sandbox.rst