* cmake: add separate export for plugin targets
Add a separate CMake export for the plugin targets to separate binaries
and libraries into their own CMake target export files. Skip the cross
compiled binary plugin targets during cross compile because they are not
usable and not always available.
The Yocto build system doesn't install cross compiled binaries into the
target sysroot. This makes the CMake gRPC config useless as it checks
the existent of binaries and fails without the binaries.
This is a strip down version of #22498
This is a CMake find-module, which attempts to find c-ares without
a CMake package file being available. If such a file is available,
it uses that. Otherwise, it searches for the library and include
directory manually.
Clément Péron
Donna Dionne
Esun Kim
Kyle Edwards
Jan Tattermusch
Alex Merry
Konstantin Podsvirov