Re #9468. Added SortTableWorkspace algorithm.
Re #9468. Added Ascending property
Re #9468. Added sorting methods to TableColumn class.
Re #9468. Unit tests.
Re #9468. Specify order when sorting indices.
Re #9468. Implemented sort() method of TableWorkspace.
Re #9468. Unit tests for SortTableWorkspace.
Re #9468. Wiki documentation. A unit test.
Merge branch 'bugfix/9468_sort_table' into develop