Add 'initfs/' from commit 'd0802237d7894881df7ddd338dfc64220d0646ff'

git-subtree-dir: initfs
git-subtree-mainline: bb25f45f43
git-subtree-split: d0802237d7

initfs/data/foo/file-link.txt

@@ -0,0 +1 @@
+file.txt

initfs/data/foo/file.txt

@@ -0,0 +1 @@
+This is a file meant to be used in a redox-initfs test.