Cleanup: move Alembic, AVI, Collada, and USD to `source/blender/io`

This moves the `alembic`, `avi`, `collada`, and `usd` modules into a common
`io` directory.

This also cleans up some `#include "../../{somedir}/{somefile}.h"` by
adding `../../io/{somedir}` to `CMakeLists.txt` and then just using
`#include "{somefile}.h"`.

No functional changes.

1 files changed, 35 insertions, 0 deletions

diff --git a/source/blender/io/CMakeLists.txt b/source/blender/io/CMakeLists.txt
new file mode 100644
index 00000000000..bc2f8d628e2
--- /dev/null
+++ b/source/blender/io/CMakeLists.txt
@@ -0,0 +1,35 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# The Original Code is Copyright (C) 2020, Blender Foundation
+# All rights reserved.
+# ***** END GPL LICENSE BLOCK *****
+
+if(WITH_ALEMBIC)
+  add_subdirectory(alembic)
+endif()
+
+if(WITH_CODEC_AVI)
+  add_subdirectory(avi)
+endif()
+
+if(WITH_OPENCOLLADA)
+  add_subdirectory(collada)
+endif()
+
+if(WITH_USD)
+  add_subdirectory(usd)
+endif()