feat(examples): Implement sponsors (p+r) for sponsor service management

[linhpn99]

From Proposal #2152 :

• This PR proposes a new realm specifically for managing information related to sponsor services. This information will be readily accessible to dApps (decentralized applications) within the ecosystem
• Please note that the realm's functionalities are currently limited for demonstration purposes. We are actively working on further development and will introduce additional features in the future

Related Pull Requests:

1. feat(gnoland): Define NoopMsg to facilitate the creation of sponsor transaction (gasless transaction) #2209: This pull request define new noopMsg
2. feat(gnoland): Define and implement SponsorTransaction concept #2630: This pull request enhances the gnoclient by introducing the ability to create and send a sponsor transaction through the definition of a noopMsg

Contributors' checklist...

• Added new tests, or not needed, or not feasible
• Provided an example (e.g. screenshot) to aid review or the PR is self-explanatory
• Updated the official documentation or not needed
• No breaking changes were made, or a BREAKING CHANGE: xxx message was included in the description
• Added references to related issues and PRs
• Provided any useful hints for running manual tests
• Added new benchmarks to generated graphs, if any. More info here.

[moul]

That's an interesting idea, but we need to address the non-realm aspect of the sponsorship before tackling this. I'll mark this PR as a draft with changes requested until we delve deeper into the other part. Thank you.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 54.99%. Comparing base (0e3c050) to head (4b2f51c).

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #2411   +/-   ##
=======================================
  Coverage   54.99%   54.99%           
=======================================
  Files         595      595           
  Lines       79775    79775           
=======================================
+ Hits        43872    43876    +4     
+ Misses      32581    32579    -2     
+ Partials     3322     3320    -2     

Flag	Coverage Δ
contribs/gnodev	26.00% <ø> (ø)
contribs/gnofaucet	14.46% <ø> (ø)
contribs/gnokeykc	0.00% <ø> (ø)
contribs/gnomd	0.00% <ø> (ø)
gno.land	64.15% <ø> (ø)
gnovm	60.20% <ø> (ø)
misc/autocounterd	0.00% <ø> (ø)
misc/genproto	0.00% <ø> (ø)
misc/genstd	80.54% <ø> (ø)
misc/goscan	0.00% <ø> (ø)
misc/logos	17.38% <ø> (ø)
misc/loop	0.00% <ø> (ø)
tm2	54.46% <ø> (-0.03%)	⬇️

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