Add 'Flog' formatted logging to mojo/services

mojo/services/flog/cpp/BUILD.gn

Index: mojo/services/flog/cpp/BUILD.gn
diff --git a/services/media/framework_create/BUILD.gn b/mojo/services/flog/cpp/BUILD.gn
similarity index 52%
copy from services/media/framework_create/BUILD.gn
copy to mojo/services/flog/cpp/BUILD.gn
index f383688d2c9c986aac73fc2bb18c89d48d3ace37..dafae116932c13d7bd0f92cb05eacc2ac7032311 100644
--- a/services/media/framework_create/BUILD.gn
+++ b/mojo/services/flog/cpp/BUILD.gn
@@ -5,14 +5,16 @@
 import("//build/module_args/mojo.gni")
 import("$mojo_sdk_root/mojo/public/mojo_sdk.gni")
 
-source_set("framework_create") {
+mojo_sdk_source_set("cpp") {
   sources = [
-    "decoder.cc",
-    "demux.cc",
+    "flog.cc",
+    "flog.h",
   ]
 
   deps = [
-    "//services/media/framework",
-    "//services/media/framework_ffmpeg",
+    "$mojo_sdk_root/mojo/public/cpp/application",
+    "$mojo_sdk_root/mojo/public/cpp/bindings",
+    "$mojo_sdk_root/mojo/public/cpp/environment",
+    "$mojo_sdk_root/mojo/services/flog/interfaces",
   ]
 }