Make decodal the published library crate

crates/decodal-cli/Cargo.toml

@@ -1,5 +1,5 @@
 [package]
-name = "decodal"
+name = "decodal-cli"
 version.workspace = true
 edition.workspace = true
 rust-version.workspace = true
@@ -9,10 +9,15 @@ readme.workspace = true
 description = "Command-line interface for the Decodal data description language."
 keywords = ["decodal", "dsl", "config", "cli"]
 categories = ["command-line-utilities", "config"]
+publish = false
+
+[[bin]]
+name = "decodal"
+path = "src/main.rs"
 
 [features]
 default = []
-regex = ["decodal-core/regex"]
+regex = ["decodal/regex"]
 
 [dependencies]
-decodal-core = { version = "0.1.0", path = "../decodal-core" }
+decodal = { version = "0.1.0", path = "../decodal-core" }