Switch to simple mode without fancy animation

[Jamagas]

I needed just simple side menu without that fancy animations, so for convenient added simpleMode property for turning simple mode on.

Other reason why I do so was that without fancy animation I wasn't able to force pan to stop at content offset value and not pan more. This functionality wasn't present.

Besides side menu dim wasn't working right. When i was swiping from side, dim from 1 to 0 was changing in respect to view width and not in respect to content offset value (old code 533 line).

[lfarah]

This git is not updated for a while. What if we created a new git???

[Jamagas]

@lfarah 2-4 months after last update I do not consider inactive repo. Still 48 open issues is not a small number. Moreover, this issue is hanging here for a long time with no attention for whatever reason. Still, at this point I do not consider, that creating new repo is a solution. But if I will not see any more activity in this repo and no updates, for I believe a half year, then I will consider some alternatives, maybe on of them will be new repo.

[Jamagas]

@romaonthego Now this pull request hanging here from last year and get no attention and no response. Are these changes not relevant or what? I believe that some kind of feedback for all pull request is required from open source project managers or I'm I wrong?