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IsCentralSeed Fix

Nicholas Luongo requested to merge nicholas/athena:iscentralseed_fix into master

This change fixes a bug in the bitwise eFEX tau creation code. The algorithm searches for local maxima in towers and creates a TOB when one is found. However, the current code only checks a subset of the cells surrounding a candidate.

This has lead to duplicate HLT taus appearing as documented here: https://its.cern.ch/jira/browse/ATR-24908

Because this is enforcing stricter criteria on the creation of a tau TOB, we expect strictly fewer to be output. Therefore updates to the reference value for the trigP1 and trigAna tests are included.

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