mgr/cephadm: add is_host_<status> functions to HostCache

mgr/cephadm: add is_host_<status> functions to HostCache

A bunch of places were doing list compression to see if a host
was unreachable/draining/schedulable by hostname. This is meant to
replace all those instances of list compression with a function
call that does the same

Fixes: https://tracker.ceph.com/issues/61548
Signed-off-by: Adam King <adking@redhat.com>
(cherry picked from commit b4002529b6ec4fae83ae3958f9fc288b22106f90)

Conflicts:
	src/pybind/mgr/cephadm/serve.py
	src/pybind/mgr/cephadm/tests/test_cephadm.py
	src/pybind/mgr/cephadm/tuned_profiles.py