If DOCKER_CLIENTONLY is set for test-integration-cli, we don't set
the 'daemon' build tag. 'isRemoteDaemon' will help us skip such
tests without a need to move them to a separate file and accidentally
lose track of them.
Added `testRequires` function to skip tests based on predefined
conditions evaluated in runtime. This way we can easily extend test
requirements like:
testRequires(t, Networking, SameHostDaemon, Linux)
Signed-off-by: Ahmet Alp Balkan <ahmetb@microsoft.com>
