Split utf8api library into 2 libraries.

Create utf8proc library and place in 3rdparty directory. Remove utf8proc files from utf8api library.

Build, finalise version v0.0.6 build, tests and packaging.

Update various documents.

Update package and readme files.

Update source notes and docs for v0-0-4 release.

As released.

Tidy up pack/release-readme.txt file.

Add example file that creates a Spanish Era calendar.

During Format parsing, correctly identify punctuation.

When parsing format string, ensure we are parsing the correct part of the field before acting on punctuation.

No change. Remove debugging and commented out code.