[fpc-pascal] GStreamer API unit added

[Michael Van Canneyt]

On Tue, 1 Nov 2022, Marco van de Voort via fpc-pascal wrote:

>
> On 1-11-2022 11:45, Michael Van Canneyt via fpc-pascal wrote:
>>
>> I'm not an expert in sound/video streams, so if someone can contribute a
>> more elaborate example, it would be most welcome :)
>>
> Did you use gir2pascal ?  Seems there are GIR files for it
>
>
> https://gitlab.freedesktop.org/gstreamer/gstreamer-rs-sys/-/tree/master/gir-files

No, I used h2pas.

Michael.