Add the 64bit time_t flag when targeting v5

[MabezDev]

No description provided.

[ivmarkov]

I think this change is OK. But given that ESP IDF 5 was already released, we might want to extend the esp-idf-template to support the 5.0 released version as well. And then the "if" for this flag would be a bit extended too.

Further on, we need to support this flag in the cmake-first build as well, but I guess this can be a separate PR.

[MabezDev]

Good points, will add cmake support and look at adding v5 support too.

[MabezDev]

I don't think V5.0 is fully released yet, at least there is no tag or release on GitHub so will defer adding those options to another PR.

[ivmarkov]

Indeed there is no v5.0 tag, yet there is a release branch?
https://github.com/espressif/esp-idf/tree/release/v5.0

[ivmarkov]

And docu: https://docs.espressif.com/projects/esp-idf/en/release-v5.0/esp32/get-started/index.html

[ivmarkov]

But I agree - this could be a separate PR.

[MabezDev]

https://docs.espressif.com/projects/esp-idf/en/release-v5.0/esp32/get-started/index.html

At the top of those docs says v5.0 is a pre release version, so I'll defer for now until its properly released.