Some part of Mono is trying to dynamically load GTK - starting `keepass`
always shows warning:
```
Gtk not found (missing LD_LIBRARY_PATH to libgtk-x11-2.0.so.0?), using built-in colorscheme
```
`*.desktop` file now:
- Refers to an icon.
- Is placed in the proper category (based on comparison with `keepassx2`.
- Has proper mime type (also based on comparison).
Also, now use `icoutils` to extract icons from the application ressouces
and transform them from `*.ico` to `*.png`. Created and used a generic
script that has the ability to move the extracted `*.png` to their
appropriate standard freedesktop location.
Tested this on nixos. `keepass` now has a icon and is categorized
in the same bin as `keepassx2`. The program still execute and
function prefectly.
- fetchNuGet can fetch binaries from nuget servers
- buildDotnetPackage can build .NET packages using mono/xbuild
- Places nuget & paket as they would clash with nix
- Patch project files because F# targets are expected to be found in
the mono directory (and we know that's not going to happen on nix)
- Find DLLs that were copied from buildInputs and replace by symlink
for sharing
- Export produced DLL via the pkg-config mechanism
- Create wrappers for produced EXEs
- Repackaged this new infrastructure: keepass, monodevelop
- Newly packaged: ExtCore, UnionArgParser, FSharp.Data, Paket, and a
bunch more..
This is a combination of 73 commits.
