Yet more moving into subdirectories.

[nageru] / nageru / bmusb

diff --git a/nageru/bmusb b/nageru/bmusb
new file mode 160000 (submodule)
index 0000000..5163d25
--- /dev/null
+++ b/nageru/bmusb
@@ -0,0 +1 @@
+Subproject commit 5163d25c65c3028090db1aea6587ec2fb4cb823e