Released v0.19.1

[cipriancraciun]

The good news is that there are no backward incompatible changes! As with the previous release, I use it everyday, thus it can't be that broken... Also, I've been using this build for almost 4 months without any issues!

The other good news is that some bugs were fixed, z-run --input has been improved (a lot, just run z-run --input --help).

Of major importance is the refactoring of the source code, by splitting it into smaller packages, allowing one to have independent reusable executables like z-input, z-select, z-fzf, that use just portions of z-run. Thus if one doesn't like z-run itself, it could still use parts of it.

Unfortunately, there still isn't much documentation or proper error messages... There are however:

• the z-run --help, z-run --manual and z-run --readme embedded files;
• examples section of the readme that adds a range of snippets that showcase what z-run can do.

Also, under the hood some things have changed:

• the cache directory layout; previously everything was thrown together in a flat structure; now there are sub-folders, mainly to ease (manual) cleaning-up;
• internally there is now a difference between a library "identifier" (as identified by the workspace) and library "instance" (as identified by the source code hashes); one can now use ZRUN_LIBRARY_IDENTIFIER for the first (for example in caches) and ZRUN_LIBRARY_FINGERPRINT in the other;
• the store interface was updated to some-day support a more optimized storing backend (that employs deduplication);
• some little attention was given to performance (while compiling the library);
• dependencies have been updated (including the custom patched fzf);