Added gRPC functions to manage libraries in profiles

[cmaglie]

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• The PR has no duplicates (please search among the Pull Requests
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• The PR follows
  our contributing guidelines
• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)
• UPGRADING.md has been updated with a migration guide (for breaking changes)
• configuration.schema.json updated if new parameters are added.

What kind of change does this PR introduce?

This is an extract of #2917 containing only the gRPC part of the PR.

What is the current behavior?

Adds only the gRPC functions for managing libraries in profiles, no user-facing changes.

What is the new behavior?

Does this PR introduce a breaking change, and is titled accordingly?

No

Other information

[codecov]

Codecov Report

❌ Patch coverage is 11.49733% with 331 lines in your changes missing coverage. Please review.
✅ Project coverage is 67.44%. Comparing base (20e315c) to head (47d7788).

Files with missing lines	Patch %	Lines
commands/service_profile_lib_add.go	0.00%	95 Missing ⚠️
internal/arduino/sketch/profiles.go	0.00%	66 Missing and 2 partials ⚠️
commands/service_profile_init.go	0.00%	59 Missing ⚠️
commands/service_profile_lib_remove.go	0.00%	33 Missing ⚠️
commands/service_profile_lib_list.go	0.00%	20 Missing ⚠️
commands/service_profile_set_default.go	0.00%	19 Missing ⚠️
commands/service_profile_dump.go	0.00%	16 Missing ⚠️
commands/cmderrors/cmderrors.go	0.00%	10 Missing and 1 partial ⚠️
commands/service_library_install.go	50.00%	5 Missing and 2 partials ⚠️
commands/service_library_resolve_deps.go	90.00%	2 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #3019      +/-   ##
==========================================
- Coverage   68.36%   67.44%   -0.93%     
==========================================
  Files         241      247       +6     
  Lines       22731    23062     +331     
==========================================
+ Hits        15541    15554      +13     
- Misses       5992     6308     +316     
- Partials     1198     1200       +2     

Flag	Coverage Δ
unit	67.44% <11.49%> (-0.93%)	⬇️

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Requested change has been made. Thanks!