Initial commit for package t-account.
initially, only the empty dirs sql, www, tcl.
each instance of this package will represent a collection of financial
T-accounts. Transactions will post to at least two accounts, crediting
one and debiting the other. The requirements for the transaction to go
forward are: (1) all accounts posted to must exist in the package
instance being posted to, and (2) total debits must equal total
credits. As I become aware of reports and other documents, I will try
to add them.