DO NOT MERGE: Add tradefed_java_library_host

Add a module type for tradefed libraries that causes an additional
copy to be installed at out/host/linux-x86/tradefed.

Bug: 143908003
Exclude merging into *-plus-aosp branches, since they already include the change.
Merged-In: I670345494abbad80dacab54471e635abfae3b3b3
Merged-In: I1cb25bbd5823a14f1a9428d58827677eff22ec7e
Change-Id: I55bca53e02588827374896ef87d58f3f4bdc48c7
(cherry picked from commit f0f2e2cf)