Include textclassifier info in dumpsys

Example output:
Text classifier constants=null
TextClassifierImpl:
  Model file(s):
    ModelFile { path=/data/misc/textclassifier/textclassifier.model name=textclassifier.model version=603 locales=en }
    ModelFile { path=/etc/textclassifier/textclassifier.universal.model name=textclassifier.universal.model version=6 locales=und }
    ModelFile { path=/etc/textclassifier/textclassifier.en.model name=textclassifier.en.model version=6 locales=en }
  mFallback=android.view.textclassifier.TextClassifier$1@8269b3
SystemTextClassifier:
  mFallback=android.view.textclassifier.TextClassifierImpl@72dbb70 mPackageName=android mSessionId=null isSystemTextClassifierEnabled=true
TextClassificationConstants:
  isLocalTextClassifierEnabled=true isSystemTextClassifierEnabled=true isModelDarkLaunchEnabled=false isSmartSelectionEnabled=true isSmartTextShareEnabled=true isSmartLinkifyEnabled=true isSmartSelectionAnimationEnabled=true getSuggestSelectionMaxRangeLength=10000 getClassifyTextMaxRangeLength=10000 getGenerateLinksMaxTextLength=100000 getGenerateLinksLogSampleRate=100 getEntityListDefault=[address, email, phone, url, date, datetime, flight] getEntityListNotEditable=[address, email, phone, url, date, datetime, flight] getEntityListEditable=[address, email, phone, url, date, datetime, flight]

FIXES: 111434669

Test: adb shell dumpsys textclassification
Change-Id: If0cbc290034ff51ec31fed1ce08e5bc806603549