Swizzle property z and w for int2/float2 and w for int3/float3

Please add complete swizzle property to int2 float2 int3 float3 similar to int4 and float4 and define it as 0

So that we could simply upcast vec2 and vec3 to another dimension easily as downcast vec4 to lower dimension

Such as

var screenPoint = new float2(5,3);
var groundPoint = screenPoint.xzy; // (5,0,3)
var wallPoint = screenPoint.zyx; // (0,3,5)

Alternatively it might be xy0 x0y _0xy yx0 y0x _0yx and maybe xy1 x1y _1xy yx1 y1x _1yx and so on for specific default number

Start by reading the existing int4 and float4 swizzle properties, then compare how int2, float2, int3, and float3 currently expose their properties. Add the requested z and w combinations with a zero component, and verify that the example upcasts and existing downcasts behave consistently; the alternative constant values remain unresolved in the issue.