three new DSPs (WIP)

perceptual bass enhancement
- a bbe-ish group delay corrction with bishelf filter high/low boost.
- precut

auditory fatigue reduction
-reduce signal in frequency that may trigger temporary threshold shift

haas surround
-frequency between f(x1) and f(x2) is always bypassed.
-can apply to side only.

Change-Id: Icb6355ce9b1c99bf2c58c9385c3c411c0ae209d3
Revert "Add mid/side processing DSP"

This reverts commit 9e7d15d269cef9a1ea3636116da76074659c8db9.
Revert "Add surround dry/wet mix, remove 1ms and 2ms option since they are"

This reverts commit 4426b797322ef0d23e35ebbb52b5688333061cc3.
Revert "Add new surround method which focuses on side process and keep the mid"

This reverts commit 52a22b73d148886beaa7e1c3a8c78164a1ba43a9.
Remove surround DSP files for further merging

Change-Id: I34fd47356179c390eb4882be4de7f3250d0c0179
Add 3 new DSPs, and remove rdose for AFR has similar features

Perceptual bass enhancement
- A bbe-ish group delay corrction with bishelf filter high/low boost.
- Precut

Auditory fatigue reduction
- Reduce signal in frequency that may trigger temporary threshold shift

Haas surround
- Frequency between f(x1) and f(x2) is always bypassed.
- Can apply to side only.

Conflicts:
	apps/lang/english.lang
	apps/menus/sound_menu.c
	apps/settings.c
	apps/settings.h
	apps/settings_list.c
	lib/rbcodec/SOURCES
	lib/rbcodec/dsp/dsp_proc_database.h
	lib/rbcodec/dsp/dsp_proc_settings.h

Change-Id: I19a31e96e012417a47d1eea4caba7f3ba910fab8