test-utils: add chain-spec-builder cli (#1061)

* test-utils: add chain-spec-builder cli

* style changes, mostly indentation

* fix padding

* add issue to todo

* more style fixes

* share seed padding with keystore

* fix master rebase error

substrate/test-utils/chain-spec-builder/src/cli.yml

@@ -0,0 +1,24 @@
+name: chain-spec-builder
+author: "azban <me@azban.net>"
+about: Utility for creating chain specs primarily for testing
+args:
+- initial_authority_seed:
+    short: a
+    value_name: INITIAL_AUTHORITY_SEED
+    help: Initial authority seed
+    takes_value: true
+    multiple: true
+    required: true
+- endowed_account_seed:
+    short: e
+    value_name: ENDOWED_ACCOUNT_SEED
+    help: Endowed account seed
+    takes_value: true
+    multiple: true
+    required: true
+- upgrade_key_seed:
+    short: u
+    value_name: UPGRADE_KEY_SEED
+    help: Upgrade key seed
+    takes_value: true
+    required: true