Dtool-info

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Fixed
^^^^^

- ``verify`` no longer hanging off ``dtool item`` command

--------------------

Added
^^^^^

- ``dtool identifiers`` command
- ``dtool summary`` command
- ``dtool verify`` command
- ``dtool item properties`` command
- ``dtool item fetch`` command

--------------------

Added
^^^^^

- ``dtool ls`` command

--------------------

Added
^^^^^

- Progress bar to ``dtool diff``

--------------------

Added
^^^^^

- ``dtool diff`` command