[abseil] Add uwp support

[JackBoosY]

Use #594 changes and add some other changes to fix uwp support.

Since upstream fixed the usage error, removed patch fix-usage-lnk-error.patch and tested successfully.

Related: #10254 #9971.

This port doesn't contain any features.

[PhoebeHui]

LGTM

[PhoebeHui]

@strega-nil, could you help review?

[JackBoosY]

grpc will update to 1.27.3 in #10242, but abseil became an optional dependency in the pre2-release version. only the function synchronization module of abseil will be an optional function of grpc[1], and the core of abseil still needs to be a required dependency of grpc.

So, when grpc is updated to the next official release, I will add feature abseil-sync to grpc in another update PR(#10307).

@strega-nil Could you please review this PR?

Thanks.

[1]. #21986

[strega-nil]

Mostly looks good, but I'm confused about the one thing :)

[strega-nil]

Alright, awesome! Thanks so much @JackBoosY :)

[strega-nil]

Alright, this looks good to me ! :D