TODO: Pull in code for supporting certain recording use cases when it's rewritten

[r2dliu]

project-slippi/Ishiiruka@9080203

project-slippi/Ishiiruka@1253612

Some other loose commits that are in ishii history

functionality is throwing messages to cout during playback to help support recording externally / frame dumping a vod, without capturing extra black frames or transitions from replay to replay

I didn't port these over to mainline because they're messy and likely going to be rewritten.