As we get more modules it turns out that the 'send' tab as originally
envisioned isn't really representative of how we're evolving.
Various items end up being about doing 'stuff' in general. Including
creating a transaction to receive. Only in a very loose way can we
say those are 'send' items.
So, without actually any user-visible changes, this renames the
enum in the module manager and module-section to make it about the
more accurate "action menu".
This sets up a basic system for creating modules on top of the flowee
pay static lib in a way that is ensured to be isolated (modules can't
accidentally use each other's classes)
The setup is made such that the buildsystem does the hard work on
plugging in a new module, making it so that all you need to do is create
a new dir and a "{something}ModuleInfo.h" file and it will get compiled
in.
The point there is to make it not have any merge conflicts and just make
it dead easy to get started.