Add recorder::Builder::build(), recorder::Builder::build_freezable() and recorder::Builder::build_frozen() methods

[ilslv]

Synopsis

To be able to compose Recorders, we need build_*() methods in addition to build_*_and_install().

Solution

Add build_*() methods in addition to build_*_and_install().

Checklist

• Created PR:
  • In draft mode
  • Name contains issue reference
  • Has type and k:: labels applied
  • Has assignee
• Before review:
  • Documentation is updated (if required)
  • Tests are updated (if required)
  • Changes conform code style
  • CHANGELOG entry is added (if required)
  • FCM (final commit message) is posted or updated
  • Draft mode is removed
• Review is completed and changes are approved
  • FCM (final commit message) is approved
• Before merge:
  • Milestone is set
  • PR's name and description are correct and up-to-date
  • All temporary labels are removed

[ilslv]

FCM

Add `recorder::Builder::build()`, `recorder::Builder::build_freezable()` and `recorder::Builder::build_frozen()` methods (#4)

[tyranron]

@ilslv nice job, thanks! 👍