CVE-2021-37682: Use of unitialized value in TFLite

All TFLite operations that use quantization can be made to use unitialized values. For example:

const auto* affine_quantization =
reinterpret_cast<TfLiteAffineQuantization*>(
filter->quantization.params);

The issue stems from the fact that quantization.params is only valid if quantization.type is different that kTfLiteNoQuantization. However, these checks are missing in large parts of the code.