TAO: Additional fixes for C++ complex scalars

TAO: Enable interface for complex scalar builds

fix viewer issues in tao and taolinesearch

fix Tao unconventional naming of TAOLINESEARCH_XXX_CTX TAOLINESEARCH_MT etc

changed TaoTerminationReason TaoConvergedReason
changed TaoLineSearchTerminationReason to TaoLineSearchConvergedReason

reason: consistency with the rest of PETSc

fixed more Tao print format statements

set tao tolerances for single precision

BTW: there are all kinds of crazy tolerances all over the place; needs to be rationalized

changed TaoSolver usage to Tao

added petsc to front of tao public includes

stop using taosolver.h includes

merged TAO_INFINITY and SNES_VI_INF into PETSC_INFINITY

more formating of tao source code

fixed quote marks for includes to <>

remove tao-private include directory, private goes into petsc-private

tao: remove trailing spaces from sources

tao: untabify sources

more format cleanup of tao

update more tao code to modern PETSc, remove PETSC_NULL, some formating

removed more %G from TAO
much more formating of TAO source code

tao: fix foo() -> foo(void)

C:\cygwin\home\sbalay\PETSC~1.CLO\src\tao\INTERF~1\dlregistao.c(60) : warning C4113: 'int (__cdecl *)()' differs in
parameter lists from 'int (__cdecl *)(void )'
C:\cygwi

tao: fix foo() -> foo(void)

C:\cygwin\home\sbalay\PETSC~1.CLO\src\tao\INTERF~1\dlregistao.c(60) : warning C4113: 'int (__cdecl *)()' differs in
parameter lists from 'int (__cdecl *)(void )'
C:\cygwin\home\sbalay\PETSC~1.CLO\src\tao\LINESE~1\INTERF~1\dlregis_taolinesearch.c(69) : warning C4113: 'int (__cdecl
*)()' differs in parameter lists from 'int (__cdecl *)(void )'

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