added changelogs

CHANGELOG.rst

+===============================
+sdm.oor Release Notes
+===============================
+
+.. contents:: Topics
+
+v1.0.0
+======
+
+Major Changes
+-------------
+
+- added strategy plugins `sdmfree` and `sdmhost_pinned`
+- added callback plugin `sdmdefault`

changelogs/changelog.yaml

+ancestor: null
+releases:
+  1.0.0:
+    changes:
+      major_changes:
+        - added strategy plugins `sdmfree` and `sdmhost_pinned`
+        - added callback plugin `sdmdefault`
+    release_date: '2021-03-08'

changelogs/config.yaml

+title: SDM object oriented role collection
+changelog_filename_template: ../CHANGELOG.rst
+changelog_filename_version_depth: 0
+changes_file: changelog.yaml
+changes_format: combined
+keep_fragments: false
+mention_ancestor: true
+new_plugins_after_name: removed_features
+notesdir: fragments
+prelude_section_name: release_summary
+prelude_section_title: Release Summary
+sections:
+- - major_changes
+  - Major Changes
+- - minor_changes
+  - Minor Changes
+- - breaking_changes
+  - Breaking Changes / Porting Guide
+- - deprecated_features
+  - Deprecated Features
+- - removed_features
+  - Removed Features (previously deprecated)
+- - security_fixes
+  - Security Fixes
+- - bugfixes
+  - Bugfixes
+- - known_issues
+  - Known Issues