add the snippets to the repo

snippets/rust.snippets

@@ -0,0 +1,30 @@
+snippet (
+	(
+		$1
+	)
+
+snippet [
+	[
+		$1
+	]
+
+snippet {
+	{
+		$1
+	}
+
+snippet )
+		($1)
+
+snippet ]
+		[$1]
+
+snippet }
+		{$1}
+
+snippet inc
+	${1:var} = ${1:var} + 1;
+
+snippet cmpn
+	#[derive(Component)] struct $1;
+