feat(languages): Add full Esperanto language support

[ctrlcctrlv]

Fliko ankaŭ enhavas la verkon de @pok49 en lia projekto "vortdivido".

Enigo

SU.debug("eo", eo_string(3333300030))
SU.debug("eo", eo_string(3000003))
SU.debug("eo", eo_string(1000000))
SU.debug("eo", eo_string(1000001))

Eligo

[eo] tri miliardoj kaj tri cent tri dek tri milionoj kaj tri cent mil tri dek
[eo] tri milionoj kaj tri
[eo] miliono
[eo] miliono kaj unu

Direndaĵojn mi ne havas plu. 😉

[ctrlcctrlv]

Merger of this PR is blocked on merger of #1445.

.ftl files do not get put into data directory.

Edit: Merged, unblocked.

[ctrlcctrlv]

This PR is blocking again. This time on #1447.

[alerque]

My pcall() solution may not have worked. Oops. I'll fix my mistake.

[Omikhleia]

Mi ja esperas, ke la kandidato havas seriozajn kialojn por proponi ĉi tiun funkcion...

[ctrlcctrlv]

@Omikhleia: Ne.

Kotizoj al malfermit´fontaĵoj vere estas (almenaŭ por mi) ega malŝparfonto. Sed eble tio ĉi estas por la (ankaŭ ega) malŝpareco de la projektoj miaj.

Good luck translating that with Google, kara.

[alerque]

I don't really care whether the intended use is serious or comical, adding Esperanto support uncovered several bugs that affected everybody and forced us to clean up several aspects of the language interface. I say thanks for the contribution.

Also I like the throwback to 19^th century with ALL THE STUFF on the title page.

[Omikhleia]

Such things would actually be real cool in a "showcase" (different from sample examples that cover a feature, just for the show and the hype)

[alerque]

Yes. See sile-typesetter/sile-typesetter.github.io#2 and sile-typesetter/sile-typesetter.github.io#31, but even without that reorganization the top level "examples" category is already open to "show and tell" stile documents that do any combination of cool things as long as they do them in a reasonably idiomatic and robust way.

The new package manager coming in v0.14.0 should make it relatively trivial to build website showcase documents with 3^rd party package dependencies, something we haven't been able to do yet. The website only has things that work in bone-stock SILE. I'll be happy to see it showcase things that require classes / packages not included in core.

[ctrlcctrlv]

Also I like the throwback to 19th century with ALL THE STUFF on the title page.

All my SILE title pages are like that lol