FeatureGroups replace top-level FeatureInfo objects.
FeatureGroups inherit top-level FeatureInfos but override
them if the feature names are the same.
Bug:16822121
Change-Id: I80b2cb778a0fbcb4521efce986fba641e0914290
AAPT dump badging should output the uses-gl-es tag with
a version of 3.1 when android.hardware.opengles.aep is
declared as a feature.
Change-Id: I8affc6dad574c8303c6ba9810ad8e6e205ea9506
A <feature-group> represents a set of features required
for an app to be compatible with a device. Multiple
<feature-group> elements represent a logical 'or'
of required features.
Features defined in the old way with <uses-feature> tags
under the <manifest> tag are automatically added to each
feature-group defined.
Defining a <feature-group> means that any default
features are not included (such as android.hardware.touchscreen)
and declared permissions do not imply any features.
Change-Id: I45626f0fdc546e47bcf2aead7ef05ebcca12b023
