* Added shaderc default defines to docs
* Update tools.rst
* Update tools.rst
* WIP new D bindings
* New bindings "nearly done"
* More unfinished changes
* Nearly done; ctors still don't work
* Bindings auto-generation is done
* New auto-generated D bindings
* Reduced D bindings file count back to 2
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Co-authored-by: Бранимир Караџић <branimirkaradzic@gmail.com>