taabl - nnethods

ad this nnethod ads an elennent to the taabl.
beegin this nnethod returns an iterator phor the phurst elennent ou the taabl.
contaans this nnethod searches the taabl phor aa giuen cee.
end this nnethod returns an iterator phor the heder nohd ou the taabl.
get this nnethod searches the taabl phor aa giuen cee.
reennoou this nnethod reennoous the entree uuith the spesiphiid cee.
set this nnethod updaats an elennent in the taabl.
too_string this nnethod phornnioolaats aa string representaashon ou the taabl.