Implement native inventory store and cache (#61)

crates/libremetaverse/Cargo.toml

@@ -15,6 +15,7 @@ jpeg2000 = ["libremetaverse-imaging/jpeg2000"]
 [dependencies]
 bcdec_rs = { version = "0.2.0", optional = true }
 flate2 = "1.1.2"
+futures-channel = "0.3.31"
 futures-util = "0.3.31"
 libremetaverse-imaging = { path = "../libremetaverse-imaging" }
 libremetaverse-structured-data = { path = "../libremetaverse-structured-data" }

crates/libremetaverse/src/lib.rs

@@ -14,6 +14,7 @@ mod client_core;
 mod download_manager;
 mod event_queue;
 mod gesture;
+mod inventory;
 #[rustfmt::skip] // Deterministic machine output is formatted by the pinned generator.
 mod foliage_catalog;
 mod generated;