Added a changelog for upcoming releases.

CHANGELOG.md

+# Next version
+
+### Master node settings
+
+![](.data/menu_settings.png)
+
+The settings on master nodes now live in a small window that you can toggle on and off. The settings menu allows you to change various rendering settings for your shader.
+
+### Bug fixes
+
+- Fixed an issue where vector 1 node was not evaluating properly. (#334 and #337)

CHANGELOG.md.meta

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