Make outputs of CLI examples nice

[LagginTimes]

Closes #905

Initial work done towards #905 using https://docs.rs/tabled/latest/tabled/.

The following commands are now in table form:

address index
address list
balance
txout list

[evanlinjin]

I think this is objectively better than what we had before. Any further improvements can be done later imo.

[remix7531]

Looks a lot better. However, this make it a lot harder to grep output.

[notmandatory]

I agree with @remix75 this output format looks good but makes it hard to parse. In many of our existing tutorials with the old bdk-cli we use jq to parse the json output. If we made these tables the default output style can we also add (in a separate PR is OK) a new --json flag (or something like that) to format command outputs as json ?