Add span queries

[alekitto]

Fixes #1316

• span_term
• span_multi
• span_first
• span_near
• span_or
• span_containing
• span_within
• span_not
• field_masking_span

[ruflin]

#1320 is now merged. This probably needs rebase now.

[alekitto]

I've rebased and squashed my work.
The only thing left is the field_masking_span, but it's barely documented (there's only an example), so i think we could leave this out, as the implementation of the query class would be probably wrong.

[ruflin]

LGTM. See my minor comment. This could be applied to all setters in the PR.

For field_masking_span agree that we can tackle that in case someone needs it actually.

[ruflin]

We normal have a return $this->setParam('little', $little); in here so all setters return the object itself. This allows for chaining functions.

[alekitto]

Ok, fixed all the setters in SpanContaining, SpanNot, SpanWithin and SpanNear (missed in #1320)

[ruflin]

@alekitto In the diff Builder.php shows up and I'm not sure why?

[ruflin]

BTW: Could you also add an entry to the changelog?

[alekitto]

Builder.php is an empty file, I probably deleted it without noticing.
The Changelog already contains a line for Span* queries addition. Do I have to add another one for these three?

[ruflin]

Argh, it seems some things got mixed up in the Changelog :-( The reason an additional entry is needed because just yesterday happened a release. So this goes into the next release.

[ruflin]

I just pushed a change to the CHANGELOG to bring it up-to-date. Make sure to get the most recent one in before updating it.

[alekitto]

👍 Done.

[ruflin]

Thanks. Waiting for green.