Feature indirect lists

generalizes and combines various methods of indirect addressing for lists.

@kuti - this may be something interesting for you.

added 11 commits

• 1cba047a...9e358144 - 6 commits from branch develop
• 04419bc1 - COMP: manage cpu architecture with cARCH, c++ARCH internal make variables
• 59a8bd1b - CONFIG: wmake -show-xyz in more places (issue #1256 (closed))
• debb06d2 - DEFEATURE: remove old IRIX code for floating-point-exceptions
• bf5af092 - COMP: use standard compiler macros when distinguishing the OS
• 2d7d81bd - ENH: generalize indirect lists and support new types

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assigned to @andy

added 8 commits

• 2d7d81bd...b608f90e - 7 commits from branch develop
• 22173460 - ENH: generalize indirect lists and support new types

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assigned to @mark

added 24 commits

• 22173460...853c5503 - 21 commits from branch develop
• c3403761 - ENH: generalize indirect lists and support new types
• 1d77aeb5 - STYLE: remove UList operator[] taking std::initializer_list
• dd11951c - ENH: add partial sorting to SortableList

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unmarked as a Work In Progress

changed the description

@andy - one thought was to support slices with a stride, Eg list[{10,5,2}] but this makes the definition in UList rather ugly (since various indirect lists depend on UList). Could forward declare the operator in UList.H and define the corresponding implementation in SliceList, but this is probably just as ugly.

For the time being, simply no definition of such slicing.

assigned to @andy

mentioned in commit 3bd94665

merged