Create a znode command for sdb #279
                
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Create a znode command for sdb. Also create znode2inode and inode2znode commands.
Signed-off-by: Paul Zuchowski [email protected]
= Problem
sdb needs a way to list znodes, and convert them to inodes, and also convert inodes back to znodes
= Solution
Implement a znode command which lists znodes and can also print a znode when an address is piped to the command. Also provide znode2inode and a inode2znode commands.
Add test cases for the new commands.
Closes #180