port f92dc617867c18216bf4a0e32ece6122b70abc5b from Pd-l2ork: updated bonk~, added bob~, updated makefile to properly build bob~

port c87e5b00229eb17bac8dc3047cd9d5f4a42c6711 from Pd-l2ork: hopefully made build process require autoconf 2.5 or newer

when selecting/deselecting individual objects on the canvas (e.g two objects where one cover the other, typically the one below would be selected/deselected first instead of the top one)

That whole function is a nasty mess that needs to be refactored

bind/unbind scalar symbol in scalar_vis instead of scalar_new
This way scalar events continue to work if the user happens to
change the [struct] arguments on us.

make [draw] arguments more closely follow the svg spec
* [draw circle 20 1 2]: radius=20, xcenter=1, ycenter=2
* [draw rect 5 10 20 40]: width=5, height=10, xoffset=20, yoffset=40
* [draw ellipse 5 10 20 40]: xradius=5, yradius=10, xcenter=20, ycenter=40

got scopehandle clicks working... now need to port scopehandle motion by adding a wrapper in canvas_motion of g_editor.c for Scope~

remove realpath call and associated code for showing recent files (we get recent files in the native file dialog for free)

fix regression where Pd would eat the first character of a symbol if the symbol contained a double quote.

add another header (not sure if it's supposed to be there, but mingw complains about missing symbols)