Update PureData (libPD) to v0.13.2

Thanks to @dizzisound https://github.com/VCVRack/VCV-Prototype/issues/66#issuecomment-1430090584

[makefile] Update Vult header URL

[makefile] Update supercollider to v3.13

Updated PR #59
Conversation https://github.com/VCVRack/VCV-Prototype/pull/59#issuecomment-923900319 still relevant

Using the v2 branch as this is the current version of VCV Rack

In order to make LuaJIT work on Mac it is necessary to update to LuaJIT 2.1.

Fix extension handling to work with the V2 SDK.

just fixed some spelling in the comments no functional changes

Add `override` to overridden methods. Ignore override warning in Faust headers.
Remove `using namespace std`, add `std::` to required identifiers.
Move /res/faust to /fause_libraries.
Install Faust to dep instead of using build directory.