The translation supports dot product of vectors of floats using
SPIR-V's OpDot.
The translation also supports dot product of vectros of integers
using multiplication and addition.
* [spirv] Translate vector types and handle variable initializers
* Translated vector types and operations on vector types
* +, -, *, /, % on vector <op> vector and vector <op> scalar
* Prefix increment on vectors
* < on vector <op> vector and vector <op> scalar
* Covered both constant initializer and variable initializer
* Applied constant modifier to variables
* [spirv] Translate all comparision operators
* Covers <, <=, >, >=, ==, !=
* For both scalars and vectors
* Also update docs about arithmetic and comparison operators
Lei Zhang
Ehsan