Add support annotations for pixel dimension and color int

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Today I spent half an hour debugging why nothing shows in my recycler. I called size(R.dimen.home_item_spacing) instead of sizeResId(R.dimen.home_item_spacing) which resulted in a huge divider spacing.

These changes will make lint warn about that problem and some related problems (margins an color ints).

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@yqritc can you take a look at this? It's fairly straightforward and really helpful.

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Any time for this small, yet very useful change?

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@yqritc Hello there, can you review and merge this?