[chore](trx-rs): centralize version in workspace.package

Add [workspace.package] version = "0.1.0" to the root Cargo.toml and
switch all 21 member crates to version.workspace = true so the entire
workspace is versioned from a single place.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Signed-off-by: Stan Grams <sjg@haxx.space>

Cargo.toml

@@ -28,6 +28,9 @@ members = [
 ]
 resolver = "2"
 
+[workspace.package]
+version = "0.1.0"
+
 [workspace.dependencies]
 flate2 = "1"
 tokio = "1"