Streamline GPS momentum plugin

packaging/MomentumGPS-README.txt

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+MomentumGPS RED4ext package
+
+Install:
+Copy the red4ext folder from this package into the Cyberpunk 2077 game folder.
+The final layout should include:
+
+  Cyberpunk 2077/red4ext/plugins/MomentumGPS/MomentumGPS.dll
+  Cyberpunk 2077/red4ext/plugins/MomentumGPS/README.txt
+
+What it does:
+The plugin changes player GPS route scoring by adding a fixed 80.0 cost to
+ordinary edge expansion in the native GPS solver. This favors smoother routes
+with fewer short-segment stair-steps and was validated in-game on long highway
+routes, City Center routes, and local Watson/Westbrook routes.
+
+Notes:
+This release has no live tuning file. To change the fixed penalty, rebuild the
+plugin with a different kFixedEdgePenalty value.
+
+The patch is version-specific native code. If a future Cyberpunk 2077 update
+changes the executable around the patched RVAs, the plugin should fail closed
+instead of patching unexpected bytes.