feat: add move-mutation-test tool

The first version of the tool is contained here.
The code structure is based upon move-spec-test tool.

Some notes:
 - For unittest build, compilation must succeed, so `--verify-mutants`
   option for the mutator is always enabled here
 - The tool isn't that slow, but that shuold be improved with some
   concurrency feature in the future
 - For quick testing, we need to be able to generate mutants for
   specific functions. That would improve overall testing speed.
 - Readme and docs will be addede separately.

.github/workflows/check-and-lint.yml

@@ -16,6 +16,9 @@ jobs:
     steps:
       - uses: actions/checkout@v2
 
+      - name: Install required deps
+        run: sudo apt-get install libudev-dev libdw-dev
+
       - name: Setup Rust toolchain
         uses: actions-rs/toolchain@v1
         with: