Set up framework and service for Nearby module.

Files under framework/api are updated using
`build/soong/scripts/gen-java-current-api-files.sh
"packages/modules/Nearby/framework/api"  system- module-lib- && m
update-api`. They are essentially empty as nearby platform APIs do not
exist yet.

Bug: 189355156
Test: mmm -j packages/modules/Nearby
Change-Id: I8df0e459a962b54cbd1a891f1fe2a1474f4cbc75
diff --git a/nearby/framework/api/module-lib-removed.txt b/nearby/framework/api/module-lib-removed.txt
new file mode 100644
index 0000000..d802177
--- /dev/null
+++ b/nearby/framework/api/module-lib-removed.txt
@@ -0,0 +1 @@
+// Signature format: 2.0