Add full overview to catalogs show

[bradhe]

Adds a --full parameter to tower catalogs show so that we can get columns, tables, schemas, and namespaces all in one go. Gives agents a full picture of what's in the catalog with one go at it.

Example

$ cargo run -- catalogs show --full default                   
    Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.36s
     Running `target/debug/tower catalogs show --full default`
A newer version of tower is available: 0.3.69 (you have 0.3.70-rc.1)
To upgrade, run: pip install --upgrade tower
✔ Listing tables... Done!
Catalog: default
Type: tower-catalog
Environment: default

Properties
 Name              Runtime Var                                   Preview    
----------------------------------------------------------------------------
 uri               PYICEBERG_CATALOG__DEFAULT__URI               [REDACTED]  
 warehouse         PYICEBERG_CATALOG__DEFAULT__WAREHOUSE         [REDACTED]  
 storage_location  PYICEBERG_CATALOG__DEFAULT__STORAGE_LOCATION  [REDACTED]  
 ro_credential     PYICEBERG_CATALOG__DEFAULT__RO_CREDENTIAL     [REDACTED]  
 ro_scope          PYICEBERG_CATALOG__DEFAULT__RO_SCOPE          [REDACTED]  
 credential        PYICEBERG_CATALOG__DEFAULT__CREDENTIAL        [REDACTED]  
 scope             PYICEBERG_CATALOG__DEFAULT__SCOPE             [REDACTED]  

Tables
bronze.account_plans
 Column        Type                     
----------------------------------------
[REDACTED]           

bronze.accounts
 Column                  Type                     
--------------------------------------------------
[REDACTED]

# snip

bronze.users
 Column                               Type                     
---------------------------------------------------------------
[REDACTED]            

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch features/add-full-overview-to-catalogs-show

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