Add ability to change, textSize, textAppearance and textColor

[ibrahimAlii]

I added a few changes to PaperpOnboardingPage.java using builder pattern to help users control the textView in easy way,
Also I apply changes inside PaperOnboardingEngine.java if applicable.

Example:

val page1 = PaperOnboardingPage.Builder( "title","Content" )
           .backgroundColor(Color.parseColor("#000"))
           .bottomBarIconResource(R.drawable.ic_zy)
           .contentIconResource(R.drawable.ic_yz)
           .titleTexStyle(R.style.Title_Style)
           .descTextStyle(R.style.Content_Style)
           .textColor()
           .descTextSize()
           .textColor()
           .build()

[ibrahimAlii]

Please check @Juriv @ronnielsen @oleg-vasiliev @RamotionDev

[pedrohcardoso]

Aprovado