Add SkImageGeneratorWIC

This will be a replacement for SkImageDecoder_WIC.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1785613010
CQ_EXTRA_TRYBOTS=client.skia.compile:Build-Ubuntu-GCC-x86_64-Release-CMake-Trybot,Build-Mac-Clang-x86_64-Release-CMake-Trybot

Review URL: https://codereview.chromium.org/1785613010
diff --git a/public.bzl b/public.bzl
index 72a27b6..df3049f 100644
--- a/public.bzl
+++ b/public.bzl
@@ -150,6 +150,7 @@
         "src/opts/SkBlitMask_opts_none.cpp",
         "src/opts/SkBlitRow_opts_none.cpp",
         "src/ports/*CG*",
+        "src/ports/*WIC*",
         "src/ports/*android*",
         "src/ports/*chromium*",
         "src/ports/*mac*",
@@ -162,7 +163,6 @@
         "src/ports/SkFontMgr_empty_factory.cpp",
         "src/ports/SkFontMgr_fontconfig.cpp",
         "src/ports/SkFontMgr_fontconfig_factory.cpp",
-        "src/ports/SkImageDecoder_WIC.cpp",
         "src/ports/SkImageDecoder_empty.cpp",
         "src/ports/SkImageGenerator_none.cpp",
         "src/ports/SkTLS_none.cpp",
@@ -196,6 +196,7 @@
         "src/opts/SkBlitRow_opts_none.cpp",
         "src/ports/*CG*",
         "src/ports/*FontConfig*",
+        "src/ports/*WIC*",
         "src/ports/*chromium*",
         "src/ports/*fontconfig*",
         "src/ports/*mac*",
@@ -208,7 +209,6 @@
         "src/ports/SkFontMgr_custom_directory_factory.cpp",
         "src/ports/SkFontMgr_custom_embedded_factory.cpp",
         "src/ports/SkFontMgr_empty_factory.cpp",
-        "src/ports/SkImageDecoder_WIC.cpp",
         "src/ports/SkImageDecoder_empty.cpp",
         "src/ports/SkImageGenerator_none.cpp",
         "src/ports/SkTLS_none.cpp",
@@ -251,6 +251,7 @@
         "src/ports/*CG*",
         "src/ports/*FontConfig*",
         "src/ports/*FreeType*",
+        "src/ports/*WIC*",
         "src/ports/*android*",
         "src/ports/*chromium*",
         "src/ports/*fontconfig*",
@@ -263,7 +264,6 @@
         "src/ports/SkFontMgr_custom_directory_factory.cpp",
         "src/ports/SkFontMgr_custom_embedded_factory.cpp",
         "src/ports/SkFontMgr_empty_factory.cpp",
-        "src/ports/SkImageDecoder_WIC.cpp",
         "src/ports/SkImageGenerator_none.cpp",
         "src/ports/SkTLS_none.cpp",
     ],