Release version 7.6.5

Merge pull request #274 from jcoady/jupyterlab4

updated some no_notebook demo programs

Merge pull request #273 from jcoady/jupyterlab4

Added some demos from webvpython

Merge pull request #267 from vpython/bounding_box

fix bound_box

Merge pull request #264 from jcoady/jupyterlab4

add jupyterlab-vpython to install-requires list

Merge pull request #260 from vpython/dotcolor

Fix dot_color

Merge pull request #259 from mwcraig/update-contributors

Update contributors

Merge pull request #258 from mwcraig/update-build-matrix-pt312

Update build matrix for Python 3.12

Merge pull request #212 from mwcraig/add-cython-ubild-dep

Add Cython to build dependencies

Merge pull request #212 from mwcraig/add-cython-ubild-dep

Add Cython to build dependencies