* Rangify STL algorithms
This commit adapts rangified std::copy(), std::fill() & std::transform()
* Rangify check_err()
By rangifying check_err(), we can not only compare values between
std::vector<>s, but also compare any ranges which have same value
type.
* Allow constructing Tensor<> like a HostTensorDescriptor
* Simplify Tensor<> object construction logics
* Remove more unnecessary 'HostTensorDescriptor' objects
* Re-format example code
* Re-write more HostTensorDescriptor ctor call
* add examples into grouped/batched_gemm
* adding splitK examples
* fixed splitK
* add bfp16 int8 example into splitK
* formatting
* use static_cast
* added common for batched_gemm
* add commons for examples of splitK/batched/grouped_gemm
* return true
* adjust splitK check tol
* update example
Co-authored-by: Chao Liu <lc.roy86@gmail.com>
