Expose concrete types

[freeformz]

• Renames
  • func Map to func MapBy
  • func New to func NewMap
  • func NewFrom to func NewMapFrom
  • func NewWith to func NewMapWith
• Set types are now exported, so that ...
• Concrete types can be used in structs and json.Unmarshaled to.
  • sets.Map (basic set type)
  • sets.Locked (basic locked set type)
  • sets.Ordered (basic ordred set type)
  • sets.LockedOrdered (basic locked+ordered set type)
  • sets.SyncMap (sync.Map based set type)
• Added more JSON tests, especially for above

#minor

[Copilot]

Pull Request Overview

This PR exposes concrete types and renames several constructors and utility functions to improve discoverability and type safety. Key changes include:

• Renaming functions (e.g. Map → MapBy, New → NewMap, etc.) and exporting concrete types.
• Updating JSON marshaling/unmarshaling and test examples to use the new names.
• Adding new tests to verify JSON behavior for the updated set types.

Reviewed Changes

Copilot reviewed 11 out of 11 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
sync.go	Exports SyncMap and updates all sync-based set functions
set_test.go	Updates test cases to use the new constructor and function names
set.go	Renames Map to MapBy and uses NewMap for instantiation
ordered.go	Exports Ordered type and adjusts return types accordingly
map.go	Exports Map type and updates associated constructor functions
locker.go	Adds a new locker interface for concurrency abstraction
locked_ordered.go	Exports LockedOrdered and revises locking semantics
locked.go	Exports Locked type and refines JSON unmarshaling logic
examples_test.go	Updates examples to reflect the new naming conventions
README.MD	Updates documentation to refer to MapBy instead of Map
CHANGELOG.MD	Documents renames and new features in the changelog

[freeformz]

That was interesting. Never did a "copilot review" before.