Add interactive sst-info

[bliu1013]

Adding first version of interactive SST-info, activated using flag -i / --interactive

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CMAKE-FORMAT TEST - PASSED

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CLANG-FORMAT TEST - FAILED (on last commit):
Run > ./scripts/clang-format-test.sh using clang-format v12 to check formatting

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[feldergast]

Generally things look good, but we need to bracket all the new code in #ifdefs that ensure that ncurses is installed. That way if there's a machine that doesn't have it installed for some reason, sst will still compile.

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CLANG-FORMAT TEST - PASSED

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CMAKE-FORMAT TEST - PASSED

[sst-autotester]

Status Flag 'Pre-Test Inspection' - - This Pull Request Requires Inspection... The code must be inspected by a member of the Team before Testing/Merging
NO INSPECTION HAS BEEN PERFORMED ON THIS PULL REQUEST! - This PR must be inspected by setting label 'AT: PRE-TEST INSPECTED'.

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CLANG-FORMAT TEST - PASSED

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CMAKE-FORMAT TEST - PASSED

[bliu1013]

@feldergast I've added in the #ifdefs and the error messages from the other PR. However, do you know if the code would actually configure and compile correctly without curses due to the changed code in configure.ac? I'm not too familiar with how autotools works, but it seems to me that either the AX_WITH_CURSES macro or the linker flag could throw an error anyways:

AX_WITH_CURSES
if test "x$ax_cv_ncursesw" != xyes && test "x$ax_cv_ncurses" != xyes; then
    AC_MSG_ERROR([requires either NcursesW or Ncurses library])
fi
LDFLAGS="$LDFLAGS -lncurses"

[github-actions]

CLANG-FORMAT TEST - PASSED

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CMAKE-FORMAT TEST - PASSED

[sst-autotester]

Status Flag 'Pre-Test Inspection' - - This Pull Request Requires Inspection... The code must be inspected by a member of the Team before Testing/Merging
NO INSPECTION HAS BEEN PERFORMED ON THIS PULL REQUEST! - This PR must be inspected by setting label 'AT: PRE-TEST INSPECTED'.

[bliu1013]

Going to go ahead and close this PR and try again