get Unscaled Text Size
open fun getUnscaledTextSize(@NonNull context: Context, @StyleRes textAppearance: Int, defValue: Int): Int
Return the R.styleable.TextAppearance_android_textSize
value from a text appearance style at its density scaled value only. If the text size from the text appearance is using dp, the density scaled value will be returned. If the text size is using sp, the raw value will be scaled according to display density but not font scale, as if it were a dp value. This is used for components that do not scale their text due to being space constrained and instead offer alternative methods of showing scaled text.