Switch to rust-vmm-ci

Use Buildkite and rust-vmm-ci for testing.

Signed-off-by: Andreea Florescu <fandree@amazon.com>

Author: andreeaflorescu

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "rust-vmm-ci"]
+	path = rust-vmm-ci
+	url = https://github.com/rust-vmm/rust-vmm-ci.git

CONTRIBUTING.md

@@ -66,6 +66,16 @@ cp arm/mod.rs arm64/
 
 Also, you will need to add the new architecture to `kvm-bindings/lib.rs`.
 
-# Future Improvements
+### Future Improvements
 All the above steps are scriptable, so in the next iteration I will add a
-script to generate the bindings.
+script to generate the bindings.
+
+# Testing
+
+This crate is tested using
+[rust-vmm-ci](https://github.com/rust-vmm/rust-vmm-ci) and
+[Buildkite](https://buildkite.com/) pipelines. Each new feature added to this crate must be
+accompanied by Buildkite steps for testing the following:
+- Release builds (using musl/gnu) with the new feature on arm and x86
+- Coverage test as specified in the
+[rust-vmm-ci readme](https://github.com/rust-vmm/rust-vmm-ci#getting-started-with-rust-vmm-ci).

coverage_config.json

@@ -0,0 +1,5 @@
+{
+  "coverage_score": 67.4,
+  "exclude_path": "",
+  "crate_features": "fam-wrappers"
+}