Simplify draw functions #218

Unrolling some loops and inlining some functions to make it easier to see the flow of the code.

Everything this function does is already done inside gl_drawframe. The only exception is that drawnoview calls drawnoviewtype instead of drawviewtype.

By moving the code into drawviewtype. The advantage is that now there is only one function so we don't need the function pointer or many small if statements, only one big if statement.