Add missing image builtins of uint type and ImageOperands variant

SPIRV-LLVM-Translator incorrectly translates unsigned return type of
image read and unsigned texel type of image write builtins into signed
type, see KhronosGroup/SPIRV-LLVM-Translator#2273
When the above PR is cherry-picked to IGC, there are undefined symbols
of uint type image builtins.

Author: wenju-he