feat(editing-support): Add rustowl (#1467)

* feat(editing-support): Add rustowl

* fix: fix typo in path

Author: Uzaaft

lua/astrocommunity/editing-support/rustowl/README.md

@@ -0,0 +1,7 @@
+# Rustowl
+
+Visualize Ownership and Lifetimes in Rust.
+
+See docs for usage
+
+**Repository**: <https://github.com/cordx56/rustowl>

lua/astrocommunity/editing-support/rustowl/init.lua

@@ -0,0 +1,7 @@
+return {
+  "cordx56/rustowl",
+  version = "*",
+  build = "cd rustowl && cargo install --path . --locked",
+  lazy = false,
+  opts = {},
+}