Fixed some issues about trapezoidal pads. Better pad editor dialog. fixed other (very) minor bugs. Code cleaning

Due to (minor) problems  in block rotate/mirror (display and undo/redo) go back to old behavior (command immediately executed , and do not entering a move block aftera block mirror/rotate)

netform.cpp added in intermediate netlist the pin list for each component in schematic. Some netlist formats (spice, orcadpcb2) are very simple to create with this pins list.

Added hotkeys editor from David Turner, with a lot of enhancements and fixes
Added pins connections info in intermediate netlist for each compoment. This is redundant, but some netlist formats (ORCADPCB, PSPICE) are very easy to create with this redundant info.

fixed issues in pads-pcb xsl converter

* Fixed multiple line strings causing MSVC compile errors.
* Fixed memory leak when attempting to add duplicate library component.
* Added recent cmake generated files to bazaar ignore list.
* Minor code cleaning.

    Revise TokenList2DsnLexer.cmake to take outCppFile and outHeaderFile optinally
    and enum mandatorily.  Standardize the script's invocation technique within
    all the CMakeLists.txt files.

netlist export speed optimizations, bug fix in NETLIST_HELP::FindAllInstancesOfComponent that I put in there yesterday.

  * Now link with XML support within wxWidgets.
  * Start of export the generic netlist in XML.  Still need to rework the chain
    loaded netlist plugin.
  * OBJ_CMP_TO_LIST class now uses a std::string to hold the 8 bit string m_Ref,
    but hides this behind accessors which provide for both Unicode and 8 bit
    set and get functions.
  * build_BOM.cpp retains the selected filename on subsequent runs as a default.
  * Code cleaning, especially in build_BOM.cpp.

minor code cleaning. fixed minor warnings in debug mode.