WoT toolchain diagram added

[mahdanoura]

BPMN diagram showing the current process required for generating the WoT specifications. Links to Specification Generation Tooling

[egekorkan]

The diagram itself is fine and much appreciated. Some remarks:

• Can you push the source file as well?
• Can you add legend to what the small icons mean?

[danielpeintner]

I think it should be put in a dedicated folder .. maybe with a README along with it

images/ seems not to be the right place

[egekorkan]

Call of 15.11:

• This diagram but actually our process should become simpler
• We can have some snippets of the big diagram as separate figures and explain them on their own. The big figure can be used as a reference.
• @lu-zero : It is better to spend time to simplify the process, rather than optimizing the figure.
• @egekorkan : There is also the step to generate the TM Schema
• Noting that black arrows are outputs and are mandatory for the publication process, either as the spec and its PNGs or as part of the wot-resources
• 1-2 sentences per step (in another document) would be nice
• Another figure would be nice to document what happens to the index.html with each publication, currently documented at https://github.com/w3c/wot-thing-description/blob/main/publication/README.md

[egekorkan]

Before merging:

• the source file should be added
• A legend to what the small icons should be added
• A new folder called "toolchain" should be created where we can also have the associated text/guide in form of a readme.

Once those are done, we can merge the PR asynchronously.

[egekorkan]

As agreed in the call yesterday, we will merge this since the points above are addressed. For more significant improvements, I will open an issue to track it. Thanks @mahdanoura !