Move BlasMatrix trait to matrix module
Add Ger trait
Add Gerc trait
Add Her trait
Add Syr trait
Add Her2 trait
Add Syr2 trait
Move symv macro to separate module
Move trmv macro to separate module
Move ger macro to separate module
Move syr2 macro to separate module
Remove lead_dim, rows, and cols methods from BlasMatrix trait
Add BandMatrix trait
Add Gbmv trait
Move Hemv trait to symv module
Move Trsv trait to trmv module
Move Gerc trait to ger module
Move Her2 trait to syr2 module
Add Sbmv and Hbmv traits
Add Tbmv and Tbsv traits