Changed the name of the file to CID-gen.go to cid_source.go. The command line will be able to take CIDs from a file and publish them to the network.

Options in creating a new config struct

Moved CidSource interface to cid_source file.
Added a file cid source
Added a bitswap cid source.

Created function find_cid_source which figures out what type of cid will be used.

struct FileCIDSource now contains the file, the filename and the scanner used to read the file.
The idea is that the GetNewCid() function will use the current state of the scanner to read the next CID along with it's contents.
I have doubts about using the parse function here to convert the string read from the file to a CID

Added error handling to the read file method.

This refers to content that only gets pinged by the CID hoarder

Generate CIDs method will generate CIDs based on the CidSource type

…nto General-refactoring