Compile fix for PS5 platform

[MicheleCaovilla]

Fix for issue #34 by Reply Game Studios

[jonpas]

ImPlot changes should be made upstream.

[MicheleCaovilla]

ImPlot changes should be made upstream.

Sorry, I rarely use git for public projects so I'm not a PR expert. What am I supposed to do? Pushing ImPlot changes to the ImPlot repo? Thanks

[jonpas]

Yes, files in ThirdParty should not be specifically changed in this repo (except configuration).

However, PLATFORM_PS5 comes from Unreal, so it should not be used in those projects either. We should instead define something those projects expect to have defined to make those changes.

[MicheleCaovilla]

Yes, files in ThirdParty should not be specifically changed in this repo (except configuration).

However, PLATFORM_PS5 comes from Unreal, so it should not be used in those projects either. We should instead define something those projects expect to have defined to make those changes.

Thanks for the explanation.

We could do something like #define IMGUI_DISABLE_DEFAULT_SHELL_FUNCTIONS in the ImGui file. I'll try to work on it over the weekend.