Added doxygen code for AF3X3.f (which I asked for) and dampF.f, dyidpj.f, llsqf.f, nllssrr.f (extra).#1

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ndattani wants to merge 6 commits intomasterfrom

Commits on Feb 11, 2021

Added first draft of doctrings to subroutines AF3X3potRet and ZHEEVJ3, and added doctring to function SQRABS.
t98yu
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Commits on Feb 13, 2021

Added additional information in AF3X3potRet subroutine.
t98yu
committed

Commits on Feb 14, 2021

Added documentation for dampF.f, dyidpj.f, llsqf.f, and nllssrr.f.
t98yu
committed

Commits on Feb 15, 2021

Added documentation to betafit.f and edited documentation to look cleaner in other .f files.
t98yu
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Commits on Mar 4, 2021