Remove use of mutable measures

[stephenjust]

WPILib 2027 removes the concept of mutable measures, so now is a good time to clean these up.

[Copilot]

Pull request overview

This PR updates SeriouslyCommonLib to stop relying on WPILib “mutable measure” types (e.g., MutAngle, MutableMeasure) in preparation for their removal in WPILib 2027, shifting code to use immutable Measure instances and Units.*.zero() helpers.

Changes:

• Replaced Mut* measure fields/usages with immutable Measure types (e.g., Angle, AngularVelocity, Distance, Voltage) across subsystems, mocks, and configs.
• Simplified MeasureProperty and its subclasses to remove the mutable-measure generic parameter and replace in-place mutation with assignment.
• Standardized several “zero” initializations to Units.*.zero().

Reviewed changes

Copilot reviewed 11 out of 11 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
src/main/java/xbot/common/subsystems/pose/BasePoseSubsystem.java	Replaces MutAngle heading tracking with immutable Angle assignments.
src/main/java/xbot/common/properties/MeasureProperty.java	Removes MutableMeasure usage and updates value tracking/log refresh to use immutable measures.
src/main/java/xbot/common/properties/TimeProperty.java	Updates property type to match new MeasureProperty generics (no mutable measure type).
src/main/java/xbot/common/properties/DistanceProperty.java	Updates property type to match new MeasureProperty generics (no mutable measure type).
src/main/java/xbot/common/properties/AngularVelocityProperty.java	Updates property type to match new MeasureProperty generics (no mutable measure type).
src/main/java/xbot/common/properties/AngleProperty.java	Updates property type to match new MeasureProperty generics (no mutable measure type).
src/main/java/xbot/common/injection/electrical_contract/SparkMaxMotorControllerOutputConfig.java	Switches RPM initialization to RPM.zero().
src/main/java/xbot/common/controls/sensors/wpi_adapters/LaserCANWpiAdapter.java	Switches distance fallback initialization to Meters.zero().
src/main/java/xbot/common/controls/sensors/mock_adapters/MockCANCoder.java	Replaces mutable measure fields with immutable Angle/AngularVelocity assignments.
src/main/java/xbot/common/controls/actuators/XCANMotorController.java	Uses Volts.zero() in limit checks for consistency with immutable measures.
src/main/java/xbot/common/controls/actuators/mock_adapters/MockCANMotorController.java	Replaces mutable voltage/current/position/velocity state with immutable measure assignments.

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[aschokking]

The reason we moved to these was to address memory pressure from creating tons and tons of immutable objects along the way. Do we maybe need to do something like mutable ourselves with internal doubles more? Or maybe the memory pressure won't be a thing on the newer hardware?