Merge "Move some methods to MoreKeySpec class"

java/src/com/android/inputmethod/keyboard/Key.java

...droid/inputmethod/keyboard/internal/CodesArrayParser.java

.../android/inputmethod/keyboard/internal/KeySpecParser.java

...c/com/android/inputmethod/keyboard/internal/KeyStyle.java

...droid/inputmethod/keyboard/internal/KeyboardTextsSet.java

...om/android/inputmethod/keyboard/internal/MoreKeySpec.java

java/src/com/android/inputmethod/latin/Constants.java

...id/inputmethod/latin/settings/SpacingAndPunctuations.java

java/src/com/android/inputmethod/latin/utils/CsvUtils.java

.../inputmethod/keyboard/internal/MoreKeySpecSplitTests.java

...droid/inputmethod/keyboard/internal/MoreKeySpecTests.java

...droid/inputmethod/keyboard/internal/KeyboardTextsSet.tmpl