Rename PAINT to PALETTE (#4161)

* /paint to /palette

* rename paint to palette

* rename the modules in palette to be pallets

* update Structure.adoc

* bump impl

* fix CI directory

* Update docs/Structure.adoc

Co-Authored-By: Benjamin Kampmann <ben@gnunicorn.org>

substrate/palette/support/rpc/Cargo.toml

@@ -0,0 +1,19 @@
+[package]
+name = "palette-support-rpc"
+version = "2.0.0"
+authors = ["Parity Technologies <admin@parity.io>", "Andrew Dirksen <andrew@dirksen.com>"]
+edition = "2018"
+
+[dependencies]
+futures = { version = "0.3.0", features = ["compat"] }
+jsonrpc-client-transports = "14"
+jsonrpc-core = "14"
+parity-scale-codec = "1"
+serde = "1"
+palette-support = { path = "../" }
+substrate-primitives-storage = { path = "../../../primitives/core/storage" }
+substrate-rpc-api = { path = "../../../client/rpc/api" }
+
+[dev-dependencies]
+palette-system = { path = "../../system" }
+tokio = "0.1"