An auxiliary procedure for `desing/exdsh`, tracing the weak
transform of exceptional components from the blowing up centers from
which they arise to the charts of the covering of the final blowing up
The procedure assumes that chartHistory contains the chart
tree of a computed seqence of blowing ups and puts the sections of the
computed ideal sheaf into the SCS entries of the charts of the
covering of the final blowing up variety.
- the ID of the chart to be processed,
- the index (in IND) of the defining equation of the
exceptional component in question,
- the exponent of the exceptional component in question.