rework WW8ReadPString in terms of read_uInt8s_AsOString
rework WW8ReadPString in terms of read_uInt8s_AsOString

JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core