Wurfapi

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* Patch: Fix the issue with c-style function pointers not being parsed correctly.

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* Minor: Added support for type aliases to have parameters documented. This is
useful for documenting type aliased functions.
* Patch: Fix issue with links in type aliases.
* Minor: Added type_alias synopsis for listing all type aliases in a namespace.
* Minor: Removed record helper and replaced all recording functionality with
pytest-datarecorder.
* Minor: Changed testing approach so that we now reuse the virtual environment
between test runs. This should speed up the testing process.

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* Minor: Updated waf.
* Minor: Added support for **bold** and *italic* text.
* Minor: Added support for references to nested struct/class member variables.
* Major: Changed the template files for the different c++ objects.
Scope is now a part of heading.

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* Minor: Added WurfapiRole to wurfapi_directive.

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* Major: Extend function_synopsis to support selectors that contain multiple
functions.

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* Minor: Extend ``cppreference_mappings`` to also include ``size_t``.