Add logger service.

Change-Id: Ic4d35e054b0fb35d9238a214933cf8004855002c
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/262204
Reviewed-by: Mike Klein <mtklein@google.com>
Commit-Queue: Mike Klein <mtklein@google.com>

Author: rosasco-wk

build/fuchsia/skqp/skqp.cmx

@@ -12,6 +12,7 @@
             "system-temp"
         ],
         "services": [
+            "fuchsia.logger.LogSink",
             "fuchsia.sysmem.Allocator",
             "fuchsia.tracing.provider.Registry",
             "fuchsia.vulkan.loader.Loader"