inp.c: nullify dbs for use with 'source' command
unique modtab for each circuit, store in ckt structure
inpcom.c: static declaration of library related global variables
inpcom.c: rename find_lib_name() --> find_section()
inpcom.c: rename new_lib_name() --> remember_section_ref()
inpcom.c: rename num_lib_names --> num_sections
inpcom.c: rename libraries[] -> library_deck[]
inpcom.c: rename library_ll_ptr[][] --> section_ref[][]
inpcom.c: rename library_name[][] --> section_name[][]
inpcom.c: rename library_file[] --> library_name[]
inpcom.c: cleanup
inpcom.c: rename function argument names
inpcom.c: rename function argument names
inpcom.c: rename expand_libs() --> expand_section_references()
inpcom.c: rename inp_determine_libraries() --> collect_section_references()
inpcom.c: rename found_lib_name --> found_section
inpcom.c: rename local variable names
inpcom.c: rename local variable names
inpcom.c: rename local variable names
expand_libs(): bug fix, missing check for .endl at the tail of a file