Handle case correction for Windows plugin

[govint]

Modified plugin_utils:GetVolumeInfo() to handle case sensitivity for windows platform. This is not tested yet for the windows platform yet.

[shuklanirdesh82]

Changes looks good to me!

Please repush to trigger CI for the last commit.

[govint]

Thanks to @shuklanirdesh82 and @ashahi1 for the Windows VM set up, verified the fix on Windows:

1. Create a volume cvol1

2. Run two containers with cvol1 and cvol1@vsanDatastore

3. Check the volume names used for the two containers,
   PS C:\Users\root> docker ps
   CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
   5d03844ef3fd microsoft/nanoserver "powershell" 11 minutes ago Up 11 minutes condescending_colden
   7dd53858f664 microsoft/nanoserver "powershell" 15 minutes ago Up 14 minutes loving_torvalds

    "Mounts": [
        {
            "Type": "volume",
            "Name": "cvol1@vsandatastore", <------------
            "Source": "C:\\Windows\\system32\\config\\systemprofile\\AppData\\Local\\docker-volume-vsphere\\mounts\\cvol1@vs
   

anDatastore\",
"Destination": "c:\vol",
"Driver": "vsphere",
"Mode": "",
"RW": true,
"Propagation": ""
}
],

And the second container,

    "Mounts": [
        {
            "Type": "volume",
            "Name": "cvol1", <----------------
            "Source": "C:\\Windows\\system32\\config\\systemprofile\\AppData\\Local\\docker-volume-vsphere\\mounts\\cvol1@vs

anDatastore\",
"Destination": "c:\vol",
"Driver": "vsphere",
"Mode": "",
"RW": true,
"Propagation": ""
}
],

[govint]

@shuklanirdesh82, do I merge the change, for some reason CI isn't showing up for this PR.

[shuklanirdesh82]

#2022 (comment)

Yeah sure!