Add a script to generate analysis sheets from a trace file

[vbkaisetsu]

This script generates analysis sheets from given trace data generated by travatar.

Generated sheet shows:

• sources, references, and translations with highlighting texts
• used rules when the cursor hovers over a text
• show parent rules when a text is clicked

Using this, we can know that this is a parsing error.

[neubig]

Wow, this is great!