added snapcraft

snapcraft.yaml

@@ -0,0 +1,17 @@
+name: gdu
+version: git
+summary: Disk usage analyzer with console interface written in Go.
+description: |
+  Pretty fast disk usage analyzer written in Go. Inspired by ncdu, godu and df.
+confinement: strict
+base: core20
+parts:
+  gdu:
+    plugin: go
+    source: .
+    source-type: git
+    build-packages:
+      - gcc
+apps:
+  gdu:
+    command: bin/gdu