Add support for building a snap via snapcraft

snap/snapcraft.yaml

@@ -0,0 +1,27 @@
+name: hyperfine
+version: git
+summary: "A command-line benchmarking tool"
+description: |
+  A command-line benchmarking tool (inspired by bench). 
+  Features
+    * Statistical analysis across multiple runs.
+    * Support for arbitrary shell commands.
+    * Constant feedback about the benchmark progress and current estimates.
+    * Warmup runs can be executed before the actual benchmark.
+    * Cache-clearing commands can be set up before each timing run.
+    * Statistical outlier detection.
+    * Export results to various formats: CSV, JSON, Markdown.
+    * Parameterized benchmarks.
+    * Cross-platform
+
+grade: stable
+confinement: classic
+
+parts:
+  hyperfine:
+    plugin: rust
+    source: ./
+
+apps:
+  hyperfine:
+    command: bin/hyperfine