[xxyzz]

I added images to X-Ray for MOBI and AZW3 books in commit https://github.com/xxyzz/WordDumb/co...1888f4ef1b5f95, the latest build can be downloaded from GitHub Actions(https://github.com/xxyzz/WordDumb/ac...uns/1596064865). Please try it out and report bugs.

For KFX books, I'll need jhowell's help again. The X-Ray data for KFX looks like this:

sqlite> SELECT * FROM excerpt WHERE image NOT NULL;
+-----+---------+--------+-------+------------------+---------+
| id  |  start  | length | image | related_entities |  goto   |
+-----+---------+--------+-------+------------------+---------+
| 576 | 1       | 0      | e6    |                  | 1       |
| 577 | 2179585 | 71     | e2GX  |                  | 2179583 |
| 578 | 2179667 | 57     | e2H8  |                  | 2179665 |

The "goto" column is the image tag offset in the file, I guess the "image" will be similar to the "src" of the img tag in MOBI file.

The "start" and "length" are for the sentence below the image. For convenience(laziness), I set "start" to the same as "goto" and "length" to 0 in this commit.