Stashes Continued

• PL_defstash is main:: stash
• PL_curstash is current package's stash

    HV*  gv_stashpv(char* name, I32 create)
    HV*  gv_stashsv(SV*, I32 create)
    HV*  SvSTASH(SvRV(SV*)); /* from blessed object */
    char*  HvNAME(HV* stash); /* extract name from stash */