ACTION-1739: Provide all the missing atk/at-spi2 interfaces for joseph

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AtkAction
* (It's complicated)

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AtkComponent
* (All roles)

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AtkEditableText
* password (if not readonly)
* searchbox (if not readonly)
* textbox (if not readonly)

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AtkHyperlinkImpl
* link

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AtkImage
* img

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AtkSelection
* grid
* listbox
* menu
* menubar
* tablist
* tree
* treegrid

Because ARIA does not support modifying the selection via accessibility API, user agents MUST return false for all methods that provide a means to modify the selection.

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AtkTable
* grid
* table
* treegrid

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AtkTableCell
* cell
* gridcell
* columnheader
* rowheader

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AtkText
* (It's complicated)

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AtkValue
* progressbar
* scrollbar
* slider
* spinbutton

Because ARIA does not support modifying the value via accessibility API, user agents MUST return false for all methods that provide a means to modify the value.

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AtkWindow
* alertdialog
* dialog

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Ask Rich about testing these changes -- does this need to be tested?

For AtkTableCell, mark as ARIA 1.1

Last note was for Joseph to mark the use of TableCell interface on role="cell" as
"[ARIA 1.1]". But, the whole role is marked that way, for all AAPIs. There was no role="cell" in the 1.0 mapping spec.

So: is the "[ARIA 1.1]" mark really necessary?

Closed per AAPI meeting 26-Jul-2016