run9 500 GeV BTOW relative gains calibration

The purpose of this analysis is to calculate the relative gains in the BTOW. The slopes of each individual tower was calculated by Justin according to the W-algo wiki using Scott's method. With these slopes I then calculated the relative gains for each tower using the following formula.

The slopes in each η ring were fitted using a Gaussian and any tower that had a status not equal to 1 was not included in the fit. The optimal gain is taken to be gainoptimal = 60 / 4076. A whole slew of plots were made as well in order to QA the data. Because the status tables are different for each fill, a new gain table was calculated for each fill.