Minor fix to support documentation tool

Fixed

• Prevented some macro redefinitions in v1/map.inc that caused warning messages and broke documentation tool on downstream projects.

Cleanup, compiler workarounds and minor bugfix

Changed

• Interfaces (intents) to map::at() and ordered_map::at(). The self object should be INTENT(IN) for these interfaces.
• Updated GitHub Actions
  • OSs
    • Remove macos-10.15
    • Add ubuntu-22.04 and macos-12
  • Compilers
  • Removed gfortran-8
  • Added gfortran-11
  • Added gfortran-12 (for ubuntu-22.04)

Fixed

• Fixed bug in vector::insert_range() (needs a unit test)

• Added TARGET to some dummy arguments to prevent NAG from doing copy-in / copy-out. Seems to
  have been causing a memory corruption issue with the yaFyaml package, but might indicate a bug
  in yaFyaml (or gFTL).

• Fixed non-standard-conforming mismatched integer KIND in deque implementation.

• Fixed misspelling of SUCCESS

Removed

• Various unused local variables that were causing annoying compiler warnings.

• Reactivated unit tests (involving Foo) that were deactivated as a workaround for some NAG 7.1 compiler releases.

Bugfixes for yaFyaml use case

Fixed

• Patched (again) such that the assignment operator for Set invokes a deep copy. Previously I mistakenly thought that since the data structure now uses ALLOCATABLE components that Fortran intrinsic assignment would suffice. But forgot that the "parent" component is still a pointer. Failures from this assumption were subtle as often parents would point to correctly looking copies outside the intended data structure.

• Missing RECURSIVE declarations on some procedures. The issue arises for YAML data structures where a map may contain items of the same map type and similarly for vectors.

Added

• A verify() method was added to several containers to aid in debugging some of the problems mentioned above. Users of gFTL should not use this method - its interface may change and the procedure may even disappear in later releases.

Bugfix for containers based on sets

Fixed

• Corrected previous commit that eliminated the non intrinsic
  assignment for set, map, and ordered_map containers. Just had not
  thought through why these are needed: internal pointers are not
  correctly established by intrinsic assignment. I was too focused on
  the nice property that allocatable components ar correctly
  deallocated. Use cases would sometimes work, because the compiler
  was avoiding copies when using constructors.

v1.7.0: Merge pull request #167 from Goddard-Fortran-Ecosystem/develop

Changed

• Eliminated type-bound overload of assignment(=) for set, map, and ordered_map. It was found that
  it caused problems with ifort 2021.5.0 and not needed by other compilers after other recent changes.

• Also made deep-copy RECURSIVE, as this is needed in the yaFyaml use
  case. RECURSIVE is of course now default in Fortran, but not all compilers
  have implemented this consistently at this time.

Fixed missing RECURSIVE

Some compilers still need this to handle recursive deallocation of containers. (yaFyaml)

Port to NVHPC compiler

[1.6.0] - 2022-03-16

Added

• NVHPC compiler support

Removed

• Removed PGI.mk and NAG.mk files which seem to be unneeded cruft

Minor changes/fixes

Changed

• On Windows M4 program is now downloaded from SourceForge during CMake configuration
  if it is not found.

Fixed

• Some procedures for map and ordered_map had not been implemented and are now added in. This was an oversight and thus being treated as a bug rather than a feature.

Minor bug fixes

Fixed

• Minor bug in Pair template that is exposed under certain combinations
  of key/value types. If key has "==" but "value" does not, then some
  local variable declarations are skipped that are needed.

• Declarion of Ptr argument in Pointer template. Still not ready
  for production use though.

Changed

• On Windows M4 program is now downloaded from SourceForge during CMake configuration
  if it is not found.

Minor fix to annoying compiler warnings

Merge pull request #151 from Goddard-Fortran-Ecosystem/fix-510

Fix typo in undef'ing `__algorithm_iterator` in map