Add speculative concurrency bug workaround.

Add speculative concurrency bug workaround.

Update Etcetera.

Update Etcetera (#6)

* Fix issues with Swift 6 language mode.

* Bump etcetera version to 4.0.0

Resolve complete strict concurrency issues (#5)

* Begin concurrency process.

* Make it concurrent.

* Add conveniences.

* Add defaults.

* Disable strict concurrency for now.

* Point to etcetera 3

Turn off decompression for .original, add a .decompressed format.

Fix malformatted filenames for formatted images. (#3)

* Add logs to file methods.

* Fix hairline cache key name bug.

* Add .fileNameExpression to hairline color.

Update ImageCache.swift

Add tvOS. (#2)