[gnome-tweak-tool] build: Reorganize icons to simplify meson build

[Jeremy Bicha <jbicha src gnome org>]

commit 6b65720276f3088a6907ac096c792de95a0e5add
Author: Jeremy Bicha <jbicha ubuntu com>
Date:   Tue Jun 6 17:33:26 2017 -0400

    build: Reorganize icons to simplify meson build

 .../{ => hicolor}/16x16/apps/gnome-tweak-tool.png  |  Bin 731 -> 731 bytes
 .../{ => hicolor}/22x22/apps/gnome-tweak-tool.png  |  Bin 1181 -> 1181 bytes
 .../{ => hicolor}/24x24/apps/gnome-tweak-tool.png  |  Bin 1324 -> 1324 bytes
 .../256x256/apps/gnome-tweak-tool.png              |  Bin 26435 -> 26435 bytes
 .../{ => hicolor}/32x32/apps/gnome-tweak-tool.png  |  Bin 1981 -> 1981 bytes
 .../{ => hicolor}/48x48/apps/gnome-tweak-tool.png  |  Bin 3285 -> 3285 bytes
 .../scalable/apps/gnome-tweak-tool-symbolic.svg    |    0
 data/icons/meson.build                             |   14 ++------------
 data/icons/{ => src}/gnome-tweak-tool.svg          |    0
 9 files changed, 2 insertions(+), 12 deletions(-)
---
diff --git a/data/icons/scalable/apps/gnome-tweak-tool-symbolic.svg 
b/data/icons/hicolor/scalable/apps/gnome-tweak-tool-symbolic.svg
similarity index 100%
rename from data/icons/scalable/apps/gnome-tweak-tool-symbolic.svg
rename to data/icons/hicolor/scalable/apps/gnome-tweak-tool-symbolic.svg
diff --git a/data/icons/meson.build b/data/icons/meson.build
index 34c2523..fdf5348 100644
--- a/data/icons/meson.build
+++ b/data/icons/meson.build
@@ -1,12 +1,2 @@
-icon_sizes = [
-  '16x16',
-  '22x22',
-  '24x24',
-  '32x32',
-  '48x48',
-  '256x256',
-  'scalable'
-]
-foreach size : icon_sizes
-  install_subdir(size, install_dir: icondir)
-endforeach
+install_subdir ('hicolor',
+                install_dir: join_paths(datadir, 'icons'))
diff --git a/data/icons/gnome-tweak-tool.svg b/data/icons/src/gnome-tweak-tool.svg
similarity index 100%
rename from data/icons/gnome-tweak-tool.svg
rename to data/icons/src/gnome-tweak-tool.svg