Add script to upload releases to snapcraft

linux/upload_craft.py

@@ -0,0 +1,12 @@
+import os, sys, subprocess
+
+if len(sys.argv) < 2:
+	print("Usage: python3 upload_craft.py skycheckers_1.x")
+	sys.exit(1)
+
+file_prefix = sys.argv[1]
+
+for suffix in ["amd64", "arm64", "i386"]:
+	filename = file_prefix + "_" + suffix + ".snap"
+	subprocess.run(["snapcraft", "upload", "--release=stable", filename])
+