Fix/ub 1103 ds8k storwize lun0 rescan

[yixuan0825]

The fix has passed the CI testing for DS8k. The fix include:

1. Add a new struct:ScbeVolumeMapInfo, it will include the Host and LunNumber The LunNumber will be get from GetVolMapping.
2. Add two new function: function isLun0 to judge if the volume is Lun0 RescanSCSILun0 to scan the Lun0 volume.
3. In the function RescanSCSILun0, I used WriteFile to rescan the volume. In the design, I wanted to use the command echo to rescan the volume . But the command doesn't work here. So I used WriteFile to rescan the volume, it works well.

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This change is 

[coveralls]

Coverage increased (+1.3%) to 59.09% when pulling 73c226f05967137385f8624fdb41eafc673e96f3 on fix/UB-1103_ds8k_storwize_lun0_rescan into ae6a0a55dd776cfac7fa96c973b9f7691e2c6e2a on dev.

[shay-berman]

feel free to merge but don't forget to merge it as "Squash and merge" (so we will not see all the 33 commits in the dev branch only 1)