ViPER4AndroidFX: Import non-root ViPER4Android FX v2.7.1.0

Viper's Audio is software for various platforms, such as Android and PC, Cat.
It is used to improve the sound in general, with the help of various sound effects,
i.e. it is actually a system equalizer.

Co-authored-by: CHRISL7 <70589286+ChrisW444@users.noreply.github.com>
Co-authored-by: TTTT555 <albukerko@gmail.com>
Signed-off-by: 7Soldier <reg.fm4@gmail.com>

Android.mk

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+include $(call all-subdir-makefiles)

README.md

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+# ViPER4Android FX
+- Add this in **device.mk**: $(call inherit-product, packages/apps/ViPER4AndroidFX/config.mk)
+
+Add this to your **audio_effects.xml**:
+
+    <library name="v4a_fx" path="libv4a_fx.so"/>
+    <effect name="v4a_standard_fx" library="v4a_fx" uuid="41d3c987-e6cf-11e3-a88a-11aba5d5c51b"/>
+
+Also you need to address some SELinux denials in **audioserver.te**:
+
+    get_prop(audioserver, vendor_audio_prop)
+    
+    allow audioserver unlabeled:file { read write open getattr };
+    allow hal_audio_default hal_audio_default:process { execmem };

config.mk

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+BUILD_PATH := packages/apps/ViPER4AndroidFX
+
+PRODUCT_COPY_FILES += \
+    $(call find-copy-subdir-files,*,$(BUILD_PATH)/vendor,vendor)
+
+PRODUCT_PACKAGES += \
+    ViPER4AndroidFX

system/Android.mk

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+include $(call all-subdir-makefiles)

system/app/Android.mk

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+LOCAL_PATH := $(call my-dir)
+
+include $(CLEAR_VARS)
+LOCAL_MODULE := ViPER4AndroidFX
+LOCAL_MODULE_TAGS := optional
+LOCAL_MODULE_CLASS := APPS
+LOCAL_CERTIFICATE := PRESIGNED
+LOCAL_SRC_FILES := ViPER4AndroidFX/ViPER4AndroidFX.apk
+LOCAL_OVERRIDES_PACKAGES := AudioFX
+include $(BUILD_PREBUILT)