Wallet Interactive-mode, Part 1 (mimblewimble#295)

* cli addition to yml

* first experiments with CLI mode

* rustfmt

* modify owner_single_use to take optional instantiated API

* refactor command functions to take owner api instance

* modify commands to use single owner api instance

* add ability to pass customised message handler to API

* prevent update wallet attempt if wallet hasn't been opened

* fix output when internal updater is running

* add termion, use cli for status updates, remove logging output from CLI

* some attempts to clean up the command prompt and accomodate scanning intervals

* rework listener slightly to allow for cli mode, add close command

* remove termion dependency

Cargo.toml

@@ -29,6 +29,9 @@ prettytable-rs = "0.7"
 log = "0.4"
 linefeed = "0.5"
 semver = "0.9"
+rustyline = "6"
+colored = "1.6"
+lazy_static = "1"
 
 grin_wallet_api = { path = "./api", version = "3.1.0-beta.1" }
 grin_wallet_impls = { path = "./impls", version = "3.1.0-beta.1" }

api/src/foreign.rs

@@ -427,7 +427,7 @@ where
 	/// ```
 	/// # grin_wallet_api::doctest_helper_setup_doc_env_foreign!(wallet, wallet_config);
 	///
-	/// let mut api_owner = Owner::new(wallet.clone());
+	/// let mut api_owner = Owner::new(wallet.clone(), None);
 	/// let mut api_foreign = Foreign::new(wallet.clone(), None, None);
 	///
 	/// // . . .