Figure out a cleaner way to deal with redirect writers

[ajaybhargavb]

We need to investigate if there is a way to get rid of WriteTo, WriteLiteralTo etc completely in our runtime code gen which in turn will remove the need to have redirected writers like RedirectedBasicWriter which does pretty much what RuntimeBasicWriter does except use WriteTo.
Also need to investigate the implications of this working with Razor 1.0.

cc @NTaylorMullen @rynowak