Introduce NativeLineBreaker.Builder and ParagraphConstraint

To make NativeLineBreaker public API, introduce
NativeLineBreaker.Builder and ParagraphConstraint.

Here is a performance differences:

android.text.StaticLayoutPerfTest:
    PrecomputedText Balanced Hyphenation  :    635 ->    684: ( +49, +7.7%)
    PrecomputedText Balanced NoHyphenation:    477 ->    523: ( +46, +9.6%)
    PrecomputedText Greedy Hyphenation    :    413 ->    463: ( +50, +12.1%)
    PrecomputedText Greedy NoHyphenation  :    413 ->    463: ( +50, +12.1%)
    RandomText Balanced Hyphenation       : 18,030 -> 18,157: (+127, +0.7%)
    RandomText Balanced NoHyphenation     :  7,390 ->  7,388: (  -2, -0.0%)
    RandomText Greedy Hyphenation         :  7,319 ->  7,331: ( +12, +0.2%)
    RandomText Greedy NoHyphenation       :  7,316 ->  7,375: ( +59, +0.8%)
  draw
    PrecomputedText NoStyle               :    631 ->    627: (  -4, -0.6%)
    PrecomputedText Style                 :    842 ->    847: (  +5, +0.6%)
    RandomText NoStyle                    :    531 ->    547: ( +16, +3.0%)
    RandomText Style                      :    754 ->    758: (  +4, +0.5%)

Bug: 112327179
Test: atest CtsWidgetTestCases:EditTextTest
    CtsWidgetTestCases:TextViewFadingEdgeTest
    FrameworksCoreTests:TextViewFallbackLineSpacingTest
    FrameworksCoreTests:TextViewTest FrameworksCoreTests:TypefaceTest
    CtsGraphicsTestCases:TypefaceTest CtsWidgetTestCases:TextViewTest
    CtsTextTestCases FrameworksCoreTests:android.text
    CtsWidgetTestCases:TextViewPrecomputedTextTest
    CtsGraphicsTestCases:android.graphics.fonts

Change-Id: I5b817bbc9f00e5806efa98f239ee20ff3d688c50