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Instancing ODBs

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The current development version of DIRSIG4 supports ODB instancing. Like object instancing, the same ODB can be used multiple times via an affine transformation. This also gives a quick way to rotate entire ODB files.

Here's the new syntax:
OBJECT {
   ODB_FILENAME = ./foxbat.odb
   UNITS = METERS
   INSTANCES {
       INFO =  0.00, 0.00, 0.0, 1.00, 1.00, 1.00, 0.00, 0.00, 0.0
       INFO =  0.00, 0.00, 0.0, 1.00, 1.00, 1.00, 0.00, 0.00, 90.0
   }
}

This functionality should become available in the next release of DIRSIG4.

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