Replaced invalid casts with memcpy
Replaced invalid casts with memcpy

A few places were reinterpreting byte aligned memory
as larger types like int, float, or double.

Use memcpy, which can do this kind of thing safely.

Fixes -Wcast-align warnings.

Change-Id: Ib480b4f12fb0fab5b672ed7acd83ab30ef094ad8

ashray/VTK-EVM,SimVascular/VTK,johnkit/vtk-dev,biddisco/VTK,gram526/VTK,sumedhasingla/VTK,SimVascular/VTK,ashray/VTK-EVM,mspark93/VTK,mspark93/VTK,keithroe/vtkoptix,candy7393/VTK,ashray/VTK-EVM,keithroe/vtkoptix,demarle/VTK,SimVascular/VTK,jmerkow/VTK,sankhesh/VTK,candy7393/VTK,jmerkow/VTK,msmolens/VTK,jmerkow/VTK,msmolens/VTK,msmolens/VTK,msmolens/VTK,gram526/VTK,jmerkow/VTK,candy7393/VTK,biddisco/VTK,sumedhasingla/VTK,johnkit/vtk-dev,SimVascular/VTK,biddisco/VTK,hendradarwin/VTK,jmerkow/VTK,keithroe/vtkoptix,keithroe/vtkoptix,keithroe/vtkoptix,keithroe/vtkoptix,johnkit/vtk-dev,berendkleinhaneveld/VTK,sankhesh/VTK,berendkleinhaneveld/VTK,msmolens/VTK,demarle/VTK,collects/VTK,gram526/VTK,ashray/VTK-EVM,collects/VTK,sankhesh/VTK,candy7393/VTK,berendkleinhaneveld/VTK,mspark93/VTK,jmerkow/VTK,demarle/VTK,mspark93/VTK,berendkleinhaneveld/VTK,demarle/VTK,hendradarwin/VTK,collects/VTK,mspark93/VTK,sumedhasingla/VTK,SimVascular/VTK,sankhesh/VTK,biddisco/VTK,sankhesh/VTK,ashray/VTK-EVM,johnkit/vtk-dev,gram526/VTK,sankhesh/VTK,biddisco/VTK,keithroe/vtkoptix,sankhesh/VTK,candy7393/VTK,johnkit/vtk-dev,hendradarwin/VTK,johnkit/vtk-dev,hendradarwin/VTK,biddisco/VTK,candy7393/VTK,hendradarwin/VTK,sankhesh/VTK,ashray/VTK-EVM,keithroe/vtkoptix,collects/VTK,johnkit/vtk-dev,SimVascular/VTK,collects/VTK,berendkleinhaneveld/VTK,demarle/VTK,hendradarwin/VTK,SimVascular/VTK,berendkleinhaneveld/VTK,jmerkow/VTK,ashray/VTK-EVM,sumedhasingla/VTK,demarle/VTK,ashray/VTK-EVM,biddisco/VTK,sumedhasingla/VTK,candy7393/VTK,hendradarwin/VTK,msmolens/VTK,gram526/VTK,berendkleinhaneveld/VTK,mspark93/VTK,msmolens/VTK,gram526/VTK,mspark93/VTK,sumedhasingla/VTK,SimVascular/VTK,collects/VTK,demarle/VTK,gram526/VTK,sumedhasingla/VTK,demarle/VTK,gram526/VTK,mspark93/VTK,msmolens/VTK,candy7393/VTK,sumedhasingla/VTK,jmerkow/VTK