Add a child to an existing parent object
Also check if the parent to whom the child is being added has a lSpouse
in which case the child/parent indexes for the lSpouse have to updated
Adds a new Subtext condition that will determine whethere or not an Indvidual subject's subtext value should
be deisplayed based on whether or not the data value in the specified field for this subtext item satisfies
the specified condition.
Adds an Individual to the pedigree by specifying the (UPN) of the Individual to be added and
the relationship of the new Individual to the existing Individual.