py-softlayer: updated to 5.9.6

v5.9.6

Improvements

Updated snap to core20 and edited README
Add a table result for slcli hw upgrade output.
Remove block/file interval option for replica volume.
slcli vlan cancel should report if a vlan is automatic.
New method to manage how long text is in output tables.
Fix Tox-analysis issues.

New Commands

add new email feature
slcli email list
slcli email detail
slcli email edit
slcli vlan cancel
Add slcli account licenses
slcli account licenses
Create a new commands on slcli that create/cancel a VMware licenses
slcli licenses create
slcli licenses cancel

(adam)