Remove generic

The generic prevents accessing the Self members, like .up in Direction2.
It is also reasonable to expect a value to be interpolated only between the same types.

Author: STREGA

Sources/GameMath/2D Types/Vector2.swift

@@ -173,14 +173,14 @@ extension Vector2 {
 
 extension Vector2 {
     @inlinable
-    public func interpolated<V: Vector2>(to: V, _ method: InterpolationMethod, options: InterpolationOptions = .shortest) -> Self {
+    public func interpolated(to: Self, _ method: InterpolationMethod, options: InterpolationOptions = .shortest) -> Self {
         var copy = self
         copy.x.interpolate(to: to.x, method, options: options)
         copy.y.interpolate(to: to.y, method, options: options)
         return copy
     }
     @inlinable
-    public mutating func interpolate<V: Vector2>(to: V, _ method: InterpolationMethod, options: InterpolationOptions = .shortest) {
+    public mutating func interpolate(to: Self, _ method: InterpolationMethod, options: InterpolationOptions = .shortest) {
         self.x.interpolate(to: to.x, method, options: options)
         self.y.interpolate(to: to.y, method, options: options)
     }

Sources/GameMath/3D Types/Vector3.swift

@@ -285,15 +285,15 @@ extension Vector3 {
 
 extension Vector3 {
     @inlinable
-    public func interpolated<V: Vector3>(to: V, _ method: InterpolationMethod, options: InterpolationOptions = .shortest) -> Self {
+    public func interpolated(to: Self, _ method: InterpolationMethod, options: InterpolationOptions = .shortest) -> Self {
         var copy = self
         copy.x.interpolate(to: to.x, method, options: options)
         copy.y.interpolate(to: to.y, method, options: options)
         copy.z.interpolate(to: to.z, method, options: options)
         return copy
     }
     @inlinable
-    public mutating func interpolate<V: Vector3>(to: V, _ method: InterpolationMethod, options: InterpolationOptions = .shortest) {
+    public mutating func interpolate(to: Self, _ method: InterpolationMethod, options: InterpolationOptions = .shortest) {
         self.x.interpolate(to: to.x, method, options: options)
         self.y.interpolate(to: to.y, method, options: options)
         self.z.interpolate(to: to.z, method, options: options)