Added precommit hooks (#22)

Author: acabarbaye

.pre-commit-hooks.yaml

@@ -0,0 +1,19 @@
+- id: assert-news
+  name: Assert news files
+  description: Assert that a news file has been added and describes the change.
+  entry: cd-assert-news -l
+  language: python
+  types: [file]
+  require_serial: true
+  verbose: true
+  always_run: true
+  pass_filenames: false    
+- id: licensing
+  name: licensing
+  entry: cd-license-files
+  language: python
+  types: [file]
+  require_serial: true
+  always_run: true
+  verbose: true
+  pass_filenames: false

news/202108131306.feature

@@ -0,0 +1 @@
+Added a [pre-commit](https://pre-commit.com) hook for ease of use in other repositories