v1.21.0

• Possibility to export Quantitations Methods (#522)
• Improving Calibration curve window: Possibility to exclude points, show chromatogram, editable parameters (WARNING: CALCULATE_CALIBRATION has been renamed OPTIMIZE_CALIBRATION) (#515)
• Show Inputs and Outputs in Workflow Step display (#520)
• Transformation_model_param_x_weight and transformation_model_param_y_weight do not accept empty values (replaced by 'x' and 'y') (#519)
• New Workflow Steps display (#517)
• Check missing or wrong columns for Quantitations Methods and Standards Concentrations files (#512)
• Check csv files BOM (#513)