Add rust_benchmark module to soong.

This commit adds rust_benchmark and rust_benchmark_host commands to
soong. Respectively running rust benchmarks on device and host. Currently
only criterion based benchmarks are supported and criterion library is
automatically linked.

Test: atest <module with rust_benchmark defined>
Bug: 155309706
Change-Id: I6edfc2b4bf30b1163fe59b8c2ecdcd4e7125e7b9

rust/rust.go

@@ -429,6 +429,7 @@ func DefaultsFactory(props ...interface{}) android.Module {
 	module.AddProperties(
 		&BaseProperties{},
 		&cc.VendorProperties{},
+		&BenchmarkProperties{},
 		&BindgenProperties{},
 		&BaseCompilerProperties{},
 		&BinaryCompilerProperties{},