todo: account LGTM in "COMMENTED" reviews

[joyeecheung]

Example: nodejs/node#16248 (review)

[Tiriel]

Just to be sure, you want to count the number of "LGTM" in the comments of a review?

Anyway, I'm taking this one!

[joyeecheung]

@Tiriel I mean the LGTM in a COMMENTED review should count as an approval ;)

[Tiriel]

Oh yeah I see, sorry.

Got it! I'll assign myself if it's ok

[Tiriel]

Landed in #72 !