Doc: Appendix - Articulations and Ornamentation - part 1

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.

This is part 1 and covers 'Articulation' and
'Ornament' scripts only.

[pkx166h, 2014-07-09 19:22:54]

Patch has been reduced in size to only cover articulations and ornamentations to
aid in the review process. Other entries will be changed in a later patch,
assuming this passes.

[pkx166h, 2014-07-09 22:16:30]

Added second example for each script showing the articulation on the low note,
some 'scripts' have different glyphs when attached 'down'. Removed the note
referenced in the @code and just left the script command 'as is'.

[pkx166h, 2017-03-19 13:19:01]

Originally posted by: pkx1...@gmail.com

author    James Lowe <pkx166h@gmail.com>   
    Wed, 9 Jul 2014 19:13:24 +0000 (20:13 +0100)
committer    James Lowe <pkx166h@gmail.com>   
    Tue, 15 Jul 2014 16:33:12 +0000 (17:33 +0100)
commit    [r85530210e95f55885e6b472e753b7561739fa472]

Note this is only Part 1, more patches to follow.

...

Originally posted by: pkx1...@gmail.com

author    James Lowe <pkx166h@gmail.com>   
    Tue, 15 Jul 2014 21:21:10 +0000 (22:21 +0100)
committer    James Lowe <pkx166h@gmail.com>   
    Thu, 31 Jul 2014 21:24:43 +0000 (22:24 +0100)
commit    [r4d6f2a27cc17261bc0970327de8665a6b771734b]

This is Patch part 2.

Still need to do percussion section

Patch #3 is in https://codereview.appspot.com/127000043/