Py50

Bug fixes 🪳

**Calculations**
- Fixed pIC50 calculation to function with nM or µM units.

**Calculations**
- Added ability to scale IC50 values into pIC50 values. This is done using the calculate_pic50() function, which utilizes the calculate_absolute_ic50() function.

**Plot_Curves**
- Turned off grid lines by default.
- Included **kwargs for matplotlib.
- For now, only (grid=True/False) arguments will work and will control the plotting of grid lines.
- Automatic grid lines may be due to the matplotlib version

Reformatted code for maintainability
Bug fixes 🪳

**Calculations**
- Renamed the Calculate() class to Calculator() class to match naming convention
- Added additional logic for relative_calculation()
- Method will now output DataFrame with correct header denoting units (nM or µM)
- Separated code logic in Calculator() into distinct methods for future maintenance
- Added additional logic for absolute_calculation()
- input_units and xscale_units are now consistent if changed from nM to µM to uM
- Method will now output DataFrame with correct header denoting units (nM or µM)
- Added option "verbose" argument for relative_calculation() and absolute_calculation()
- To print out additional information

**Plotting**
- Refactored code for easier maintainability
- Added new coding scripts for plotting
- Renamed parameters for continuity
- Fixed the vline and hline variables in the single_plot_curve(), multi_curve_plot(), and grid_curve_plot()
- This is now set to None by default. If else statement will determine its use/starting position
- Added "verbose" argument for the single_plot_curve(), multi_curve_plot(), and grid_curve_plot()
- To print out additional information

Bug Fixes:

Fixed drug concentration sorting for absolute absolute_calculation()

Minor enhancements🙌
Added the option to draw a vertical or horizontal line across the length or height of the plot in addition to the box to highlight IC50.

Bug fixes😭
Fixed bug for sigmoid curves. Function will now calculate Relative and Absolute IC50 for datasets with positive or negative sigmoid curves.

Plots will now draw curves for both positove or negative sigmoid curves

Primary release of py50.