Credit Curve Regression

Implementation of functional regression for the following features of credit curve analytics:
 - Credit curve creation from a composite mix of credit instruments - CDS and bonds
 - Credit curve creation from nodes of hazard rates and/or survival factors
 - Parallel shifted, node-shifted, and recovery shifted credit curve creation from the base credit curve
 - Scenario tweak adjusted credit curve creation from the base credit curve
 - Spot and Effective implied hazard rates and survival factors (period spanners)
 - Quote retrieval latency