Fixed an issue where jumbomoji were not properly being rendered
when using system emoji. Also fixed an issue where the text
content wasn't properly being recalculated when the view is
resized.
Fixes#7875
1. Switch to using default text rendering if there's no emoji present in
the string.
2. Reduce redudant redraws by skipping of setText() calls for identical
strings.
Together, these two changes should reduce the vast majority of
flickering we see with EmojiTextView ellipsizing.
Unfortunately, the change wasn't as simple as just switching to use our
EmojiTextView. That view only supported single-line text. I added
support for multi-line text.
Fixes#7704.
1) EmojiTextView and EmojiEditText are used instead of
using code to emojify text.
2) Emoji categories' code points are specified in XML
3) EmojiDrawer itself is a fragment, and its pages are
also fragments, allowing for better memory
management.
Fixes#2938Fixes#2936Closes#3153
// FREEBIE
