Manual IPP dispatcher simplification;

Still need to remove the descriptions of these flags from cv::norm

Removing description for cv::NormTypes that's already in cv::norm

Masking out NORM_TYPE_MASK from docs since it's not intended to be exposed to user

Added forkfour Latex command to math js support.

Split cv::norm documentation between the cv::norm and its overload, to make things clearer

Corrected some typos and cleaned up grammar.

Result is clearer documentation for the norms.

Work pending...