Added additional columns for asset swap and invoice spread for YY, T, and Z and removed need to set in Global Preferences
Previously in the Bond sheets for forward and spot ASW, OIS, invoice spread, and OIS invoice spread traders had to switch between yield-yield, true, and Z-spread methods in the Global Preferences menu. Now, additional columns have been introduced so that traders can new view all ASW, OIS, and invoice spread measures at once without having to switch. Traders can find these new columns by searching the original column name followed by their preferred measures (such as FASW T or FOISprd YY).
