Patch from Thomas Berezansky addressing logical importance of various circulation...

Patch from Thomas Berezansky addressing logical importance of various circulation and hold matrix matchpoint components.

Previous to this commit, INDB circ and holds use a pre-defined weighting set for rule ordering. This can be changed via replacing the relevant "find" functions in the database, but this is not easily done for most people.

The weight set for circ matchpoints is obtained based on the context ou of the circ (aka, where the circ is happening).

The weight set for hold matchpoints is obtained based on the item's circ library (aka, where the item lives).

Optionally, add an enabled circ.holds.weight_owner_not_circ internal flag to have the weight set for hold matchpoints be obtained based on the item's owning library (owner of the call number).

TODO: discuss promotion of circ.holds.weight_owner_not_circ to a Global Flag; wikified or docbook'd documentation and use-case examples.

git-svn-id: svn://svn.open-ils.org/ILS/trunk@19317 dcc99617-32d9-48b4-a31d-7c20da2025e4