from_reduced_word should be replaced by from_word

[sdenton4]

In Coxeter groups and Weyl groups, we have the method 'from_reduced_word'. This method doesn't check that the word is actually reduced. Removing the 'reduced' would make the name more accurate and save millions of characters of typing over the course of a month, reducing the overall incidence rate of carpal-syndrome in the Sage community, and thus raising the overall productivity of the community at large.

We recommend that 'from_reduced_word' either be deprecated or made to check that the word is reduced, and that 'from_word' be introduced in the relevant categories.

CC: @sagetrac-chrisjamesberg

Component: group theory

Keywords: from_word coxeter days49

Issue created by migration from https://trac.sagemath.org/ticket/14773