Remove explicit dependency on tabulate; Add comments #336
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The latest version of Python tabulate library available as a Debian package for Stretch is 0.7.7. However, the new "show vlan" command requires support for multi-line output in a cell, a feature that was added in tabulate v0.8.1.
Tabulate v0.8.2 is the latest version available via pip, so I am now installing this package in the base image here: sonic-net/sonic-buildimage#2130
I have also added comments describing the change and listing the packages that we cannot currently specify as explicit dependencies because they cannot be installed as .deb packages.