[clang] [clang][analyzer] Add missing stream related functions to StdCLibraryFunctionsChecker. (PR #76979)

[Balázs Kéri via cfe-commits]

balazske wrote:

Next step is to add all functions to the non-POSIX part that exist in the C standard (at least the stream functions), and change `fread` and `fwrite` too (currently `errno` is always modeled but should be only in POSIX mode).

https://github.com/llvm/llvm-project/pull/76979