Merge "Add the initial implementation of bp2build converter for java_library,...

Merge "Add the initial implementation of bp2build converter for java_library, java_library_host, java_binary_host and cc_library_host_shared so signapk tool can be built with Bazel." am: 2115d351

Original change: https://android-review.googlesource.com/c/platform/build/soong/+/1918122

Change-Id: Ic86acd2ce9c424899e13ff7b68c8bda88718113c