Original PR #3074 by @dgquintas

Move completion queue binding for new requests to the new request
request time, not server instantiation time.

-) = delete isn't supported. Moving destructor out of scope.
-) variadic templates aren't supported. Replacing emplace_back's construction.
-) C++11's {} inline construction isn't supported. Adding temporary variables.
-) std::list<> can't work on a non-declared class. Changing to a raw pointer.

Add a GrpcLibrary class to wrap grpc_init and grpc_shutdown and convert all the tests to init/shutdown free.

-) using dupenv_s instead of getenv_s and calling strdup ourselves.
-) few impossible-to-obtain if checks.
-) various signed/unsigned casting.
-) using time_t instead of time32_t
-) checking output of FormatMessage for failures.
-) don't redefine _WIN32_WINNT without undefining it first.
-) fixed msvc's interlocked casting.
-) renamed AddPort to AddListeningPort.
-) added protobuf's third_party includes to search path.
-) added a missing definition for inet_ntop in mingw32.
-) removed useless declarations.

Testing asan configuration with the latest clang compiler fails due to
the warning `-Winconsistent-missing-override`. This patch fixes it.