Support template tags for SQL find-and-replace about metabase

[crisptrutski]

I see this compilation uses QP directly, so we will need to do something smarter. Unfortunately we cannot insert comments within the tag-default values. Perhaps we need a flag to QP to inject these on our behalf.

[crisptrutski]

I can't remember what I was thinking when I opened this, but I suspect I was just confused by the fact that analysis uses QP compilation. Replace does not reuse the same analysis wrapper, and does reverse its modifications already. Pushing down replacements would still be a nice optimization, but the behavior we want is already captured in passing tests.