Don't request glyphs for verticalized punctuation if feature can't be verticalized

[mb12]

Platform:
iOS and Android
Mapbox SDK version:
Master

Steps to trigger behavior

For certain codepoints e.g. '.' , the corresponding verticalization char is also added to glyph dependencies. This happens here.

However the requested code point is not used if the placement is not along line. This happens here.

Expected behavior

Only request code point ranges that will be used during placement.

Actual behavior

[ChrisLoer]

It looks to me like fixing this just requires checking allowsVerticalWritingMode (and textAlongLine) for the feature before building the set of glyph dependencies.

/cc @1ec5

[jfirebaugh]

Fixed in #9033.