Merge pull request #8 from NVlabs/ref-4.2

Add reference verison for Isaac Sim 4.2 (and changelog)

Author: yanchangNvidia

Diff for: CHANGELOG.md

@@ -0,0 +1,23 @@
+# Changelog
+
+# main
+
+# ref-4.2
+
+Release targeting Isaac Sim 4.2
+
+- Added modular state capture
+- Added state writer class
+- Added state reader class
+- Added support for H1
+- Added support for Jetbot
+- Added support for Spot 
+- Added support for Carter
+- Added keyboard teleop scenario
+- Added gamepad teleop scenario
+- Added path following scenario
+- Added random acceleration scenario
+- Added initial OV extension for launching scenarios and recording data
+- Added replay rendering scripts
+- Added data loading examples
+- Added workflow documentation