It appears iem16 is supposed to be built as a single binary. Unfortunately
Pd-extended broke these up into separate binaries without setting up a
sensible cross-platform shared library.

Thus Pd-extended had creation-order problems where, for example, the tab16
classes depended on a table16 to already exist so that the relevant symbols
could resolve properly.

We have no way of knowing how people were using these classes in the wild with
Pd-extended. To support old Pd-extended patches we just use copy/pasta for a
few functions so that any of the classes can get their objects instantiated
without depending on any of the other classes already existing.

quick fixes found by the test system (which we can later request to merge
upstream)

This reverts commit 16973649, reversing
changes made to 15094e4c.

Change from "cyclops" to "cyclone_ops" to avoid any potential name clashes
with other libs

essentially guarantees that there will be unused parameters, so these warnings
end up being noise even for external libs.

remove OSCx/configure (should have been done in last commit, which was only adding a line to the oscx_clean target)

improve the external dialog api by adding an additional argument to specify the input type, refactor grid dialog to the new interface

* the commits from Pd-extended Sourceforge were then (selectively) merged
  with the ported gui code.

repo cleanup: remove tcl/tk build infrastructure and scripts, old patches, automated build scripts for pd-extended, old gui plugins, and unnecessary install-time dependencies

port all relevant externals to the new loadbang interface. Unfortunately it has some #defines hidden in g_canvas.h, so we port that macro individually to each affected library.