add default member

add shared dependencies to workspace dependencies

all package level dependencies now rely on workspace

constant-time/Cargo.toml

@@ -12,4 +12,4 @@ readme = "readme.md"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-rosenpass-to = { path = "../to" }
+rosenpass-to = { workspace = true }