IBM / ubiquity / 850

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master: 0%

Pull #171

travis-ci

Improve performance for mpath Discovery method

1. Do NOT do sg_inq deepDiscovery during the RescanAll in the attach flow.
   Its waist of time to do deepDiscovery in this case, since its already done after the RescanAll when discovering the new device.

2. Do sg_inq deepDiscovery only in the following cases:
  2.1. During the attach after the RescanAll
  2.2. When Discover for cleanup(unmount flow).

3. Remove double sg_inq validation if discover during deepDiscovery

4. Remove Stat(mpath) validation during Discover, since its already validated during GetWwnByScsiInq() or DiscoverBySgInq()

5. Fix interfaces, UT and fakes according (Still need to add more UT)

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