Add TestProperties, gen test config, fix names

* Rename testBinaryDecorator to testDecorator
* Add TestProperties
  * Add install function for testDecorator to install config files
  * Add tradefed.AutoGenRustHostTestConfig
  * Depend on new build/make/core/rust_host_test_config_template.xml
    and new tradefed.testtype.rust.RustBinaryHostTest class
* Add autogenTemplateWithName in tradefed/autogen.go
  to generate config files with customized(mutated) executable name.
* Make rust_test module names more robust and easy to use.
  * Use crate name instead of source file name as the Stem
    for single source file modules, to match original user
    specified output file name in Cargo.toml.
  * Do not set up test module SubName when Stem is empty
    or when the module name already contains Stem suffix.
    That happens when TestPerSrcMutator is disabled or when
    there is only one source file with renamed output file name.
  * In TEST_MAPPING, references to mutated rust_test modules should be
    (1) <module_name> for single source file modules without mutation, or
    (2) <module_name>_<crate_name> for single source file modules, or
    (3) <module_name>_<source_file_base_name> for multi-file modules.

Bug: 140938178
Test: mm in rust projects, check output test file names
Change-Id: Ifdbfa14d5eed4f10b4fb983f82c93bbb9be3f899