Move a bunch of stuff around (#10101)

* Move devtools.

* Merge stop_guard & rename memzero

* Move price-info to miner.

* Group account management

* Clean up workspace members.

* Move local store closer to miner.

* Move clib examples.

* Move registrar and hash-fetch

* Move rpc_cli/rpc_client

* Move stratum closer to miner.

* Fix naming convention of crates.

* Update Cpp examples path.

* Fix paths for clib-example.

* Fix removing build.

ethcore/src/lib.rs

@@ -103,7 +103,6 @@ extern crate parity_snappy as snappy;
 extern crate ethabi;
 extern crate rustc_hex;
 extern crate stats;
-extern crate stop_guard;
 extern crate using_queue;
 extern crate vm;
 extern crate wasm;