Move SkDebug.cpp from core to base

The symbol defined there is declared in include/private/base,
so we can't put it in the src/core module.

Change-Id: I60ed9fd6c84c301511986c52b7f4e1349f6d16ab
Bug: b/40045064
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/766681
Commit-Queue: Kevin Lubick <kjlubick@google.com>
Reviewed-by: Leandro Lovisolo <lovisolo@google.com>
Commit-Queue: Leandro Lovisolo <lovisolo@google.com>
Auto-Submit: Kevin Lubick <kjlubick@google.com>
5 files changed