Statemine Release Prep (#460)

* set default para id to 1000

* add genesis value generation script

* add statemine chain spec and genesis values

* add westmint chain spec and genesis values

* rename chain specs to _genesis to indicate that they are not usable for syncing the chain

* adjust chain names to reduce confusion

* add westmint chain spec

* set chain id to shell

* comment out statemine chain spec

* fix build

Co-authored-by: joepetrowski <joe@parity.io>

scripts/generate_genesis_values/package.json

@@ -0,0 +1,14 @@
+{
+  "name": "generate_genesis_values",
+  "version": "1.0.0",
+  "description": "filter genesis key-value pairs from a chain spec and store them",
+  "main": "index.js",
+  "scripts": {
+    "generate": "node index.js"
+  },
+  "author": "Parity Technologies <admin@parity.io>",
+  "license": "ISC",
+  "dependencies": {
+    "@polkadot/util-crypto": "^6.5.1"
+  }
+}