[PlayState] Add support for sharing real play time to another extensions

[BanCrash]

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Extension PlayState

Describe the solution you'd like Add support for sharing the real play time after using the pause feature to another extensions, like Game Activity.

Opening this to keep tracking here too.

Quote from @Lacro59 on https://github.com/Lacro59/playnite-gameactivity-plugin/issues/55 :

@darklinkpower The ideal is for the plugin to share the different poses to remove them from the session. But it will probably be necessary to wait until Playnite.SDK allows to share the data.

[darklinkpower]

Depends on https://github.com/JosefNemec/Playnite/issues/2039