Rename project structure with /core and /client

client/cli/Cargo.toml

@@ -0,0 +1,9 @@
+[package]
+name = "graphite-cli"
+version = "0.1.0"
+authors = ["Graphite Authors <graphite@keavon.com>"]
+edition = "2018"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]

client/cli/src/main.rs

@@ -0,0 +1,3 @@
+fn main() {
+	println!("Hello, Graphite!");
+}