Rename task plugins to make .plugin and .py match

fix #855 stage 1/3

Includes Warrick-style pedantry.

Signed-off-by: Chris “Kwpolska” Warrick <kwpolska@gmail.com>
Rename compiler plugins to make .plugin and .py match

fix #855 stage 2/3

Includes even more of Warrick-style pedantry.

Signed-off-by: Chris “Kwpolska” Warrick <kwpolska@gmail.com>
Rename rest plugins to make .plugin and .py match

fix #855 stage 3/3

COMMAND OF THE DAY:
PAGER=cat git grep '^    name = ' > /tmp/row1; PAGER=cat git grep '^Name = ' > /tmp/row2

Signed-off-by: Chris “Kwpolska” Warrick <kwpolska@gmail.com>