Visualization of bim2sim plugin structure

To get an overview about the structure of the bim2sim plugins for all plugins you can find a visualization (eg. visualization of the plugin template). This visualization is semi automatic generated. Following the workflow to generated a plugin visualization is explained by the example plugin example.

Change into the folder plugindiagram:

cd bim2sim-Root/bim2sim/docs/utilities/plugindiagram

Open the file template_mermaid.py with a text editor and adapt the path variable reading the plugin you like to visualize template_mermaid.py.

Run the python script to generate the mermaid code (mermaid)

python3 template_mermaid.py

Copy the content of the generated file into the markdown file at the position you like to include the visualization of the plugin. The documentation creator (Sphinx) needs following indicator surrunding the mermaid code:

```mermaid
mermaid code ```

The result can be checked by copy the content of the generated file into: mermid live.