mime: extend "builtinTypes" to include a more complete list of common types
Implement all agreed upon types, using IANA's listed media types to decide
when there is a disagreement in type. Except in the case of `.wav` where
`audio/wav` is used.
Fixes #69530
Change-Id: Iec99a6ceb534073be83c8390f48799bec3e4cfc7
GitHub-Last-Rev:
e314c5ec6d9aba753dca5f6dbb9d1741bac43227
GitHub-Pull-Request: golang/go#69533
Reviewed-on: https://go-review.googlesource.com/c/go/+/614376
Reviewed-by: Damien Neil <dneil@google.com>
Reviewed-by: Emmanuel Odeke <emmanuel@orijtech.com>
Auto-Submit: Sean Liao <sean@liao.dev>
Reviewed-by: Sean Liao <sean@liao.dev>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Carlos Amedee <carlos@golang.org>