showmap enhancements

Fixed a bug where maps were being coalesced even when they were
not necessarily coalesced.

Enhanced the BSS segment detection heuristic so that it takes
the map start / end addresses into account and displays the
inferred map type directly.

Automatically sort all maps by name or address as appropriate.

Fixed a bug parsing maps with paths that contain whitespace.

Enhanced the -a argument to show the same columns as the normal
mode but just prefixed with the virtual memory map information.

Change-Id: Ice78afb0c5b597683cb1a1ba65e3c10f10258f7c
1 file changed