[TIMOB-26119] TiAPI: Deprecate getter/setter accessor methods for properties

We currently generate get/setX methods to handle reading/writing properties - in addition to the typical property access. This is atypical for Javascript, and is more common in a language like Java. We should consider deprecating these additional methods and preferring access via typical property routes such as object.property or object['property'] On reason we may want to do this is to reduce common boilerplate code that is an annoyance to write/maintain when having to duplicate code for a single property. A good example can be seen in our Windows implementation: https://github.com/appcelerator/titanium_mobile_windows/blob/master/Source/TitaniumKit/include/Titanium/UI/View.hpp#L170 https://github.com/appcelerator/titanium_mobile_windows/blob/master/Source/TitaniumKit/include/Titanium/UI/View.hpp#L228-L229 We basically have to define the same property 3 times (and then implement it too). We get away with getting these for "free" on iOS due to our reflection based implementation, but moving to a more proper binding would result in the same sort of boilerplate there as we have on Windows.