refactor: deprecate --verbose and print all status output by default

[Wwwsylvia]

What this PR does / why we need it:

1. Move the --verbose flag out of opts.Common
2. Print a deprecation message if the --verbose flag is used
3. Hide the --verbose flag in help docs
4. Print status output for untitled blobs by default
5. Refactor internal types
6. Update the corresponding tests

Updates on the oras discover command will come in a separate PR.

---

BEFORE:
oras pull:

oras pull --verbose:

oras pull --help

AFTER:
oras pull:

oras pull --verbose

oras pull --help

Which issue(s) this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close the issue(s) when PR gets merged):
Fixes #1533

Please check the following list:

• Does the affected code have corresponding tests, e.g. unit test, E2E test?
• Does this change require a documentation update?
• Does this introduce breaking changes that would require an announcement or bumping the major version?
• Do all new files have an appropriate license header?

[codecov]

Codecov Report

Attention: Patch coverage is 91.11111% with 4 lines in your changes missing coverage. Please review.

Project coverage is 83.99%. Comparing base (76eadf2) to head (cc5de49).
Report is 3 commits behind head on main.

Files with missing lines	Patch %	Lines
cmd/oras/root/manifest/push.go	50.00%	1 Missing and 2 partials ⚠️
cmd/oras/root/blob/push.go	87.50%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1545      +/-   ##
==========================================
+ Coverage   83.96%   83.99%   +0.03%     
==========================================
  Files         119      119              
  Lines        5306     5316      +10     
==========================================
+ Hits         4455     4465      +10     
  Misses        604      604              
  Partials      247      247              

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[wangxiaoxuan273]

LGTM but I'm not a maintainer.

[shizhMSFT]

I think we should take the fix into multiple steps:

1. Downgrade global level --verbose to command-specific level
2. Mark the command-specific level --verbose as deprecated
3. Propose a more meaningful flag to replace the functionality of the deprecated --verbose flag.

[Wwwsylvia]

Refactoring in progress, mark this as draft for now.

[Wwwsylvia]

Experimenting another way of doing this in #1553