Create new SD Table for automodes

[ArchdukeTim]

Currently, autonomous variables add variables to the path SmartDashboard/MODE/VAR, but they are all under the SmartDashboard table. I propose creating a new table for each Automode, so they show up under their own folder. Much cleaner that way

[ArchdukeTim]

It may also be good to remove the mode name if it's in the MODE_NAME table

[virtuald]

Yeah, I had meant to change how that worked, but it's too late for 2017 (don't want to break existing code).

[ArchdukeTim]

i decided that too