Fix color interpolation for AnimatedVectorDrawableCompat

A fix was made in L such that inflated animators using color
values would automatically get an ArgbEvaluator, to ensure that
color animations would look correct. AnimatedVectorDrawableCompat
does not automatically get that L behavior on earlier releases.
To make the animation look correct, this fix sets an ArgbEvaluator
on animators targeting the "fillColor" property on pre-L releases.

Issue #26965996  Fix Color interpolation bug for SDK <21 in support lib

Change-Id: I2662b17bebfcecca243f00f81d64eebbf4d59d43
9 files changed