Introduce new DSPs and DSP update

- surround: Fully rewrited. Surround effect will not apply to
sound data between frequency fx1 and fx2.
- aatube: Fully rewrited using band pass with sample mux.
- rDose: A BBE clone, which group delay correction algorithm, based on
Viper4Android's documentation.
- Overdrive: Now display gain in dB and limited the value to under the
maximum value of treble/bass gain.
- crossfeed: lnx crossfeed.
- limiter: Removed to simplify the compressor settings but keep the
compressor switch available.

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

Change-Id: Iae85ae9ee4e9bfef63c22cdb489347ca259dd70b
Update translations

Change-Id: I3118810efdbc3bcf2f8b5517fef30760f42b585e
Fix yellow

Change-Id: Ib43e4192bfbd1c4ba6fbe871412bf83c0471b41d
Fix typo

Change-Id: I9fce9b5c2eda73d2d2c588b4e1927895d9345a80