remove blue highlight on search box.

themes can still change ::focus styles via stylesheets so there is no usability loss.
remove blue highlight on library sidebar
Add eqeffect.cpp to sources list
Create an effect with a 3 band EQ
Register EqEffect
Fix comment
[Coding Style] Each member of a class should be on its own line
Remove the link between the super knob and eq knobs
Use the initializer list for old_low, old_mid, old_high, old_dry
Use a ControlObjectSlave to get the sample rate from the EqEffect
Make the sample rate accessible from descendants of GroupEffectProcessor
Connect the frequency corners from preferences to the EQ Effect
Initialize m_loFreq and m_hiFreq with 0 in initializer list
Fix typo in control.h
Do ramping after setFrequencyCorners() (not working properly yet)
Do a cross fade without using an additional buffer (not working properly yet)
Do not create new filters in setFilters(). Update previously created filters instead.
Change the sample rate in setFrequencyCorners(). If frequency corners are changed, do ramping in the next process() call
Pass the sample rate to setFrequencyCorners()
Use memset and memcpy for copying and initializing buffers