Implement expected analysis

[paulf81]

Implement expected analysis

Feature or improvement description
This branch will implement the methods of uplift analysis described in AWC validation methodology. It also makes some changes to names of existing functions to better clarify the operation of the seperate methods for analyzing data and quantifying uplift.

Changes to be included:

• Renaming EnergyRatioInput to AnalysisInput to make clear can be used for both
• Providing an alias to EnergyRatioInput with deprecation warning to avoid breaking changes
• Renaming ComputeTotalUplift to TotalUpliftPowerRatio to clarify the method of analysis
• Add an alias with deprecation warning
• Updating all references in code
• Adding new module expected_power_analyisis.py which will implement the methods in AWC validation methodology
• Add new module expected_power_analysis_output.py for catching the output of functions in expected_power_analysis and provided post-processing operations
• Adding tests for any new function
• Add an example
• Adding documentation