Doc: Appendix - Articulations and Ornamentation - part 2

Doc: Appendix - Articulations and Ornamentation - part 2

Issue 1189

Create Texifo @multitable entries for the
List of Articulations appendix.

As there are a lot of separate scripts being
documented this Issue is going to be split
into multiple, smaller, parts to aid in the
review process. Part 1 was commit 8553021

This is part 2 and covers 'Fermata', 'Instrument
specific', 'Repeat signs' and 'Ancient' scripts.

Also, after more consideration, a third example
of each script has been added to show the
explicit differences between the up/down/neutral
positions. Not every script has a different
up/down glyph nor is positioned up/down when
placed on a note that is either top or bottom of
the Staff without explicit positioning. So this,
I hope just clarifies things (regardless whether
the position is musically 'correct' notation).

I have also sey the @code{} script examples into
the same column as the @lilypond examples; saving
a significant of wasted page space. Also I have
removed unnecessary lilypond-book variables making
the texinfo code less noisy.