Create new table acq.fund_allocation_percent, to store the percentages by which

Create new table acq.fund_allocation_percent, to store the percentages by which
future funding credits will be allocated to funds.

Create a trigger to ensure that the percentages never add up to more than
100 for any given funding source.

Populate the new table from acq.fund_allocation.

In acq.fund_allocation: convert any percentages to amounts, and nullify the
percentages.

M    Open-ILS/src/sql/Pg/002.schema.config.sql
A    Open-ILS/src/sql/Pg/upgrade/0049.schema.acq_funding_allocation_percent.sql
M    Open-ILS/examples/fm_IDL.xml

git-svn-id: svn://svn.open-ils.org/ILS/trunk@14566 dcc99617-32d9-48b4-a31d-7c20da2025e4