[FEATURE] EQ: Smart Filter Creation

[dcallea]

Is your feature request related to a problem? Please describe.
Creating new bands in the EQ is currently bothersome: you have to select the filter from the dropdown menu at the bottom.

Describe the solution you'd like
A modern approach to creating new bands: filter creation depending on where you click.
For example: clicking on the graph between 0 to 30 Hz creates a highpass filter, 30-100 Hz a low shelf, 100-7k a bell, 7k to 15k a high shelf, 15k+ a lowpass.