Add first changelog (#27)

Author: jedel1043

CHANGELOG.md

@@ -0,0 +1,27 @@
+# CHANGELOG
+
+## What's Changed
+
+### Enhancements
+* Add blank and negated + small adjustments by @nekevss in https://github.com/boa-dev/temporal/pull/17
+* Simplify Temporal APIs by @jedel1043 in https://github.com/boa-dev/temporal/pull/18
+* Implement `Duration` normalization - Part 1 by @nekevss in https://github.com/boa-dev/temporal/pull/20
+* Duration Normalization - Part 2 by @nekevss in https://github.com/boa-dev/temporal/pull/23
+* Add `non_exhaustive` attribute to component structs by @nekevss in https://github.com/boa-dev/temporal/pull/25
+* Implement `Duration::round` and some general updates/fixes by @nekevss in https://github.com/boa-dev/temporal/pull/24
+
+### Documentation
+* Adding a `docs` directory by @nekevss in https://github.com/boa-dev/temporal/pull/16
+* Build out README and CONTRIBUTING docs by @nekevss in https://github.com/boa-dev/temporal/pull/21
+
+### Other Changes
+* Port `boa_temporal` to new `temporal` crate by @nekevss in https://github.com/boa-dev/temporal/pull/1
+* Add CI and rename license by @jedel1043 in https://github.com/boa-dev/temporal/pull/3
+* Create LICENSE-Apache by @jedel1043 in https://github.com/boa-dev/temporal/pull/6
+* Setup publish CI by @jedel1043 in https://github.com/boa-dev/temporal/pull/26
+
+## New Contributors
+* @nekevss made their first contribution in https://github.com/boa-dev/temporal/pull/1
+* @jedel1043 made their first contribution in https://github.com/boa-dev/temporal/pull/3
+
+**Full Changelog**: https://github.com/boa-dev/temporal/commits/v0.0.1