Research V7 development

Add file usr/src/libF77/r_cnjg.c
Research V7 development

Add file usr/src/libF77/r_cos.c
Research V7 development

Add file usr/src/libF77/r_exp.c
Research V7 development

Add file usr/src/libF77/r_dim.c
Research V7 development

Add file usr/src/libF77/r_imag.c
Research V7 development

Add file usr/src/libF77/r_lg10.c
Research V7 development

Add file usr/src/libF77/r_int.c
Research V7 development

Add file usr/src/libF77/r_log.c
Research V7 development

Add file usr/src/libF77/r_sin.c
Research V7 development

Add file usr/src/libF77/r_nint.c
Research V7 development

Add file usr/src/libF77/r_mod.c
Research V7 development

Add file usr/src/libF77/r_sign.c
Research V7 development

Add file usr/src/libF77/r_sinh.c
Research V7 development

Add file usr/src/libF77/r_sqrt.c
Research V7 development

Add file usr/src/libF77/r_tan.c
Research V7 development

Add file usr/src/libF77/s_cmp.c
Research V7 development

Add file usr/src/libF77/s_cat.c
Research V7 development

Add file usr/src/libF77/r_tanh.c
Research V7 development

Add file usr/src/libF77/s_stop.c
Research V7 development

Add file usr/src/libF77/s_paus.c