Torts — Premises liability — Slip and fall — Transitory substance on floor — Constructive notice — Evidence that there was dirty water on floor with muddy footprints and a separately located skid mark, together with circumstantial evidence which would support inference that no inspection of bathroom was conducted during the entirety of the day plaintiff fell, was sufficient to create genuine issues of material fact as to defendants’ constructive knowledge of dangerous condition — Trial court erred in granting summary judgment in favor of defendants