Matrix Default values

[Dawie3565]

check default values for (New) matrix nodes Matrix 3 Matrix 4

check default values for (new) shader function matrix inputs Matrix 3 Matrix 4

[OwenTheProgrammer]

Copy/Pasting of Matrix 3x3 and Matrix 4x4 function inputs also seem problematic, seems like an alignment issue internally

[diogovtx]

This turned out to be a weird way of preserving/copying values between different types when changing the Function Input's data type.

I created an exception for matrices, where non-matrix values simply aren't copied/matched in this case. When dealing will matrices, values will only be preserved when changing from float3x3 to float4x4, and vice-versa.

Other than that, matrix defaults are generally fine.