Modify or remove get-examples for new repo

[dangunter]

Fixes #1131

Summary/Motivation:

Not really needed anymore

Changes proposed in this PR:

• Play around with variations on removing or making the command a print statement
• Commit the best solution

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[dangunter]

New command

❯ idaes --help
Usage: idaes [OPTIONS] COMMAND [ARGS]...

Options:
  --version      Show the version and exit.
  -v, --verbose  Increase verbosity. Show warnings if given once, then info,
                 and then debugging messages.
  -q, --quiet    Increase quietness. If given once, only show critical
                 messages. If given twice, show no messages.
  --help         Show this message and exit.

Commands:
  bin-directory       Show IDAES executable file directory
  bin-platform        Show the compatible binary build.
  config-display      Show IDAES config
  config-file         Show the config file paths
  config-set          Set a set a configuration option
  config-write        Write the IDAES config
  convergence-eval    Run convergence sample evaluation.
  convergence-sample  Create a convergence sample file.
  convergence-search  Search for convergence test classes.
  copyright           Show IDAES copyright information
  data-directory      Show IDAES data directory
  environment-info    Print information about idaes, OS, dependencies...
  extensions-license  show license info for binary extensions
  extensions-version  show license info for binary extensions
  get-examples        (legacy) install IDAES example Jupyter notebooks
  get-extensions      Get solvers and libraries
  hash-extensions     Calculate release hashes
  import-time         Show how long it takes to import command modules
❯ idaes get-examples

The get-examples command has been removed.

The IDAES examples are now available as the `idaes-examples` package in PyPI.
To install, run the following command:

     pip install idaes-examples

This also installs the 'idaesx' command that can be used to browse the Jupyter
notebooks. The simplest way to do this is with the embedded desktop UI:

    idaesx gui

For more details, see the IDAES documentation at https://idaes-pse.readthedocs.io/
and the idaes-examples page on PyPI at https://pypi.org/project/idaes-examples/

[codecov]

Codecov Report

Patch coverage: 100.00% and project coverage change: +0.42 🎉

Comparison is base (cd2605c) 76.32% compared to head (c7292ed) 76.74%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1138      +/-   ##
==========================================
+ Coverage   76.32%   76.74%   +0.42%     
==========================================
  Files         370      372       +2     
  Lines       60214    60011     -203     
  Branches    10961    10922      -39     
==========================================
+ Hits        45957    46055      +98     
+ Misses      11903    11598     -305     
- Partials     2354     2358       +4     

Impacted Files	Coverage Δ
idaes/commands/examples.py	100.00% <100.00%> (+77.35%)	⬆️

... and 8 files with indirect coverage changes

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[ksbeattie]

LGTM

[lbianchi-lbl]

We should get #1132 merged soon, but this is self-documenting enough that I think we can merge it concurrently.