Move functions / classes edge -> web
UIA.Web is a new base for browser specific implementations:
- spartan-edge
- Chromium based browsers: anaheim-edge, chrome
This commit is a direct move (no alterations) of code to preserve history.
- Move function splitUIAElementAttribs
- Move EdgeTextInfo
- Move shareable aspects of class EdgeNode:
* _get_role
* _get_states
* _get_ariaProperties
* _get_isCurrent
* _get_roleText
* _get_placeholder
* _get_landmark
- Move class EdgeList
- Move class EdgeHeadingQuickNavItem
- Move class EdgeHeadingQuicknavIterator
- Move shareable aspects of class EdgeHTMLTreeInterceptor:
* makeTextInfo
* shouldPassThrough
* _iterNodesByType
