Move everything in the root

src/lib.rs

@@ -0,0 +1,21 @@
+pub extern crate bitcoin;
+extern crate log;
+pub extern crate miniscript;
+extern crate serde;
+#[macro_use]
+extern crate serde_json;
+
+#[cfg(test)]
+#[macro_use]
+extern crate lazy_static;
+
+#[cfg(any(feature = "key-value-db", feature = "default"))]
+extern crate sled;
+
+#[macro_use]
+pub mod error;
+pub mod database;
+pub mod descriptor;
+pub mod psbt;
+pub mod signer;
+pub mod types;