Some commits ago all CPack internal `*.cmake` files have been moved
to `Internal/CPack/`. This commit also move some templates
internally used by generators to the same location to make
`Modules/` directory less noisy w/ files the end users don't
need to use/see.
There is no need to use a CamelCase executable name since it will be
handled gracefully on Windows anyway. This change allow support for
Linux system, in particular Debian distribution where the binary is
called `nuget`.
These modules are not meant to be included by user code, they are
only an internal implementation detail for CPack. Having them live
in the main Modules directory with documentation was misleading, so
they have been moved into Modules/Internal/CPack, and their
documentation has been stripped following its move into the new
"CPack Generators" section. No-op modules which contained only
documentation have been removed entirely.
The only module that hasn't been moved is CPackIFW, because it
contains user-facing macros which would be lost if it were moved.
So, the CPackIFW module has been updated with a note explaining what
needs to (eventually) happen.
