Add information about aspect of verbs (Russian)

[PIPPOHSIOS]

It could be really helpful to have the aspect of a verb (perfective or imperfective) and its respective counterpart in the definition. I'm using the Russian dictionary, but I'm sure the same applies for all the Slavic languages too.

[PIPPOHSIOS]

While making the monolingual transition, I noticed that every term in the Russian monolingual dictionary does not have any tag at all. I've tried to fix it myself, and although I've had no luck, I noticed that each tag is just skipped, as the skippedTermTags.json file shows when creating the Yomitan dictionary.