FreeNAS/freenas 1484dc9gui/services models.py forms.py, gui/services/migrations 0020_add_enable_smb1.py

Add checkbox to enable SMB1 support

(cherry picked from commit 70e6e541458e12c46bb947b68dffb7cfcf424955)
DeltaFile
+24-0gui/services/migrations/0020_add_enable_smb1.py
+11-3src/freenas/usr/local/libexec/nas/generate_smb4_conf.py
+10-0gui/services/models.py
+0-6gui/services/forms.py
+45-94 files

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