In OAK-7203  we're discussing the best location for the
MountInfoProviderService. The context is that due to the addition of
the mounts concept a MountInfoProvider implementation is required and
for OSGi deployment we have to add oak-store-composite.
There are two options here:
1. Move the service to oak-core.
2. Require oak-store-composite for deployments
If we go with 1, we have simpler deployments ( one less bundle ). If we
go with 2, we split the logic from the oak-store-composite bundle and
add more stuff on top of oak-core.