set up release-drafter (#1503)

see https://github.com/marketplace/actions/release-drafter#configuration for description of the config options

.github/release-drafter.yml

@@ -0,0 +1,51 @@
+name-template: 'v$RESOLVED_VERSION'
+tag-template: 'v$RESOLVED_VERSION'
+categories:
+  - title: 'New Presets'
+    labels:
+      - 'new-preset'
+  - title: 'New and Changed Fields'
+    labels:
+      - 'field'
+      - 'new-field'
+      - 'new-value'
+  - title: 'Changed Presets'
+    labels:
+      - 'add-field'
+      - 'new-icon'
+      - 'new-label'
+  - title: 'Regional Presets and Fields'
+    labels:
+      - 'regional'
+  - title: 'Deprecated Tags'
+    labels:
+      - 'deprecating'
+  - title: 'Bug Fixes'
+    labels:
+      - 'bug'
+  - title: 'Documentation and Other Changes'
+    label: 'ci'
+    label: 'github-actions'
+    label: 'documentation'
+    label: 'new-category'
+    label: 'javascript'
+    label: 'schema-builder'
+    label: 'schema'
+  - title: 'Dependencies'
+    collapse-after: 3
+    labels:
+      - 'dependencies'
+change-template: '* $TITLE (#$NUMBER, thanks @$AUTHOR)'
+change-title-escapes: '\<*_&'
+version-resolver:
+  major:
+    labels:
+      - 'breaking'
+  minor:
+    labels:
+      - 'enhancement'
+  patch:
+    labels:
+      - 'bug'
+  default: minor
+template: $CHANGES