Generate visual parameter and foliage catalogs (#48)

Cargo.lock

@@ -375,6 +375,7 @@ name = "libremetaverse-codegen"
 version = "0.0.1"
 dependencies = [
  "prettyplease",
+ "roxmltree",
  "serde",
  "serde_json",
  "sha2",
@@ -670,6 +671,15 @@ version = "0.8.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d6f6ff9a378485b298a5286656da665ba74413d36db0979633275d2e708145d4"
 
+[[package]]
+name = "roxmltree"
+version = "0.21.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f1964b10c76125c36f8afe190065a4bf9a87bf324842c05701330bba9f1cacbb"
+dependencies = [
+ "memchr",
+]
+
 [[package]]
 name = "rustc-hash"
 version = "2.1.3"