Feature: Residual Diagnostics Plot

[Aravind Hebbali]

Add the following plots for residual diagnostics:

• pearson standardised residual vs fitted values
• pearson standardised residual vs case number
• deviance residual vs fitted values
• deviance residual vs case number
• leverage vs fitted values
• leverage vs case number
• CI Displacements C vs case number
• CI Displacements CBar vs case number
• Diff Chi Square vs case number
• Diff Deviance vs case number
• DfBetas vs case number