Add Parachain Template (#620)

* Add Canvas node as Parachain template

* Remove `pallet-contracts`

* Point to local Cumulus dependency

* Use double quotes instead of single quotes

* Get rid of GPL licensing

* Remove references to Canvas

* Get rid of warnings

* Remove GLP-3 License copy-pasta file

* Copy in README from `substrate-parachain-template`

* Add mention of `polkadot-launch` tool

* Add missing screenshot asset

* Remove Canvas hidden files and scripts

* Rename `template` to `parachain-template`

* Remove a few more Canvas references

* Add `pallet-template`

* Get `pallet-template` compiling

* Remove TODOs about Weights

* Sort some dependencies

* Remove contracts specific const

* Change binary name back to `parachain-collator`

* RustFmt

* Fix mock tests

* Purge sneaky whitespace

* Add template pallet index to runtime

Co-authored-by: Ricardo Rius <9488369+riusricardo@users.noreply.github.com>

* Add force authoring to collator `polkadot-launch` config

Co-authored-by: Ricardo Rius <9488369+riusricardo@users.noreply.github.com>

* Refer README readers to `substrate-parachain-template`

* Remove license header in `build.rs`

Co-authored-by: Michael Müller <michi@parity.io>

* Fix punctuation nitpick

Co-authored-by: Michael Müller <michi@parity.io>

* Remove unused `lib.rs` file

* Add note about Rococo network

Co-authored-by: Ricardo Rius <9488369+riusricardo@users.noreply.github.com>
Co-authored-by: Michael Müller <michi@parity.io>

Cargo.lock

@@ -5740,6 +5740,21 @@ dependencies = [
  "sp-std",
 ]
 
+[[package]]
+name = "pallet-template"
+version = "0.1.0"
+dependencies = [
+ "frame-benchmarking",
+ "frame-support",
+ "frame-system",
+ "parity-scale-codec",
+ "scale-info",
+ "serde",
+ "sp-core",
+ "sp-io",
+ "sp-runtime",
+]
+
 [[package]]
 name = "pallet-timestamp"
 version = "4.0.0-dev"
@@ -5914,6 +5929,123 @@ dependencies = [
  "serde",
 ]
 
+[[package]]
+name = "parachain-template-node"
+version = "0.1.0"
+dependencies = [
+ "cumulus-client-cli",
+ "cumulus-client-collator",
+ "cumulus-client-consensus-aura",
+ "cumulus-client-consensus-common",
+ "cumulus-client-network",
+ "cumulus-client-service",
+ "cumulus-primitives-core",
+ "cumulus-primitives-parachain-inherent",
+ "derive_more",
+ "frame-benchmarking",
+ "frame-benchmarking-cli",
+ "hex-literal 0.3.3",
+ "jsonrpc-core",
+ "log",
+ "pallet-transaction-payment-rpc",
+ "parachain-template-runtime",
+ "parity-scale-codec",
+ "polkadot-cli",
+ "polkadot-parachain",
+ "polkadot-primitives",
+ "polkadot-service",
+ "polkadot-test-service",
+ "sc-basic-authorship",
+ "sc-chain-spec",
+ "sc-cli",
+ "sc-client-api",
+ "sc-consensus",
+ "sc-executor",
+ "sc-keystore",
+ "sc-network",
+ "sc-rpc",
+ "sc-rpc-api",
+ "sc-service",
+ "sc-telemetry",
+ "sc-tracing",
+ "sc-transaction-pool",
+ "sc-transaction-pool-api",
+ "serde",
+ "sp-api",
+ "sp-block-builder",
+ "sp-blockchain",
+ "sp-consensus",
+ "sp-consensus-aura",
+ "sp-core",
+ "sp-inherents",
+ "sp-keystore",
+ "sp-offchain",
+ "sp-runtime",
+ "sp-session",
+ "sp-timestamp",
+ "sp-transaction-pool",
+ "structopt",
+ "substrate-build-script-utils",
+ "substrate-frame-rpc-system",
+ "substrate-prometheus-endpoint",
+]
+
+[[package]]
+name = "parachain-template-runtime"
+version = "0.1.0"
+dependencies = [
+ "cumulus-pallet-aura-ext",
+ "cumulus-pallet-dmp-queue",
+ "cumulus-pallet-parachain-system",
+ "cumulus-pallet-xcm",
+ "cumulus-pallet-xcmp-queue",
+ "cumulus-primitives-core",
+ "cumulus-primitives-timestamp",
+ "cumulus-primitives-utility",
+ "frame-benchmarking",
+ "frame-executive",
+ "frame-support",
+ "frame-system",
+ "frame-system-benchmarking",
+ "frame-system-rpc-runtime-api",
+ "log",
+ "pallet-aura",
+ "pallet-authorship",
+ "pallet-balances",
+ "pallet-collator-selection",
+ "pallet-randomness-collective-flip",
+ "pallet-session",
+ "pallet-sudo",
+ "pallet-template",
+ "pallet-timestamp",
+ "pallet-transaction-payment",
+ "pallet-transaction-payment-rpc-runtime-api",
+ "pallet-xcm",
+ "parachain-info",
+ "parity-scale-codec",
+ "polkadot-parachain",
+ "polkadot-runtime-common",
+ "scale-info",
+ "serde",
+ "smallvec",
+ "sp-api",
+ "sp-block-builder",
+ "sp-consensus-aura",
+ "sp-core",
+ "sp-inherents",
+ "sp-io",
+ "sp-offchain",
+ "sp-runtime",
+ "sp-session",
+ "sp-std",
+ "sp-transaction-pool",
+ "sp-version",
+ "substrate-wasm-builder",
+ "xcm",
+ "xcm-builder",
+ "xcm-executor",
+]
+
 [[package]]
 name = "parachains-common"
 version = "1.0.0"