Create CHANGELOG.md

Author: SpencerTWilliams

CHANGELOG.md

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+# Changelog
+
+## 1.1 - 2024-03-10
+
+### Added
+- Joint Model Personalization (JMP) tasks can contain a `<marker_list>` explicitly naming markers to track
+- Plotting functions for Muscle Tendon Personalization (MTP)
+- Plotting function for overall variability accounted for (VAF) and activation RMS error for Neural Control Personalization (NCP)
+- Treatment Optimization can use both torque and synergy controllers, as well as both types in the same Model
+- Treatment Optimization can modify a subset of model coordinates, taking prescribed values from input data for others
+- Synergy-driven Treatment Optimization can optionally adjust synergy vectors
+- Synergy-driven Treatment Optimization tools automatically create surrogate polynomial muscle models instead of requiring a separate tool
+- Design Optimization can solve open/free final time problems
+- New Treatment Optimization cost terms: 
+	- Marker position tracking
+	- Joint power minimization
+	- Joint energy generation goal
+	- Joint energy absorption goal
+	- Propulsive impulse goal
+	- Braking impulse goal
+	- Muscle activation minimization
+	- External torque control minimization
+	- Whole body angular momentum minimization
+	- Relative walking speed goal
+	- Relative metabolic cost per time
+	- Relative metabolic cost per distance traveled
+- New Treatment Optimization constraint terms: 
+	- Initial state position
+	- Limit muscle activation
+	- Limit normalized fiber Length
+	- Synergy weight sum
+- Plotting functions for Treatment Optimization results
+
+
+### Fixed
+- JMP preserves all joint parameters through multiple tasks
+- Muscle-Tendon Length Initialization tracks passive data with extra muscle analysis files present
+- NCP accurately tracks joint moments with multiple synergy groups
+
+
+### Changed
+- Ground Contact Personalization (GCP) defines a contact surfaces with a `<hindfoot_body>` instead of a `<toes_coordinate>` or `<toes_joint>` in XML
+- Treatment Optimization (Tracking, Verification, and Design Optimization) settings have changed significantly due to changes to how states and controls are handled
+- Treatment Optimization uses GCV splines to fit data instead of B-splines
+- Treatment Optimization includes coordinate accelerations in controls instead of coordinate jerks