* Library component objects can now draw themselves without external drawing code.
* Fix all the library drawing and field objects to support component drawing code.
* Provide proper file dialog wild card for symbol libraries and us wxFileDialog.
* Update component library editing code to reflect component drawing changes.

* Replaced WinEDAListBox buttons with wxStdDialogButtonSizer.
* Moved library draw entries GenCopy method to base class.
* Remove priorque.cpp and priorque.h from CMakeLists.txt.
* The usual code cleaning and uncrustification.

Moved all library entry manipulation code scattered throughout EESchema into
the component library object itself.  Adding, removing, and searching is now
handled by the library object.  This is the precursor to replacing the current
priority queue code.

enhancement in Cvpcb: fast selection of components or footprint by typing the first letter of reference or footprint name

This is the first in a series of updates to the schematic library component
object code.  The goal is to eliminate the external manipulation of these
objects and push this code back into the objects themselves.  Also replace
the priority queue and internal linked list implementations with DLIST or
Boost pointer containers.

fixed: incorrect sub path calculation for libs and doc filenames (full filenames where always converted to relative paths,
even when they are not in standard libraries paths)

Small change in print function: print footprint after zones (like in BOARD::Draw) to make pads holes visible on copper zones