What's the purpose of ocrx_cinfo?

[kba]

Spec says

  * ocrx_cinfo should nest inside ocrx_line
  * ocrx_cinfo should contain only x_confs, x_bboxes, and cuts attributes

but not what ocrx_cinfo actually is.

[amitdo]

It's not clear whether Tom really wanted both ocr_cinfo and ocrx_cinfo.

[kba]

IIUC:

• ocr_cinfo is a generalized form of word, a placeholder to set character cuts.
• ocrx_word is a "word". Quotation marks!, since the engine defines what it means with "word".
• ocrx_cinfo would then be something within a line that has distinguishable codepoints that is not a "word" in the sense of the engine.
• x_bboxes is only mentioned for ocrx_cinfo
• cuts is only mentioned for ocr_cinfo

Since neither ocr_cinfo nor ocrx_cinfo seem to have semantics beyond "can contain character-level coordinates", ocrx_cinfo seems redundant.

[amitdo]

Related, should be rebased:
6fdbbbf28