(Oh My) Gentool 0.4.0 released

[evilrat]

## (oh my) gentool v0.4 is now out.

It is my fancy tool to generate extern(C++) stuff quicker, it 
takes regular compiler flags that you usually pass to clang and 
translates C/C++ code to D.

This release has one new feature: support pragma mangle on 
aggregates (class, struct, etc...).

Also a lot of work was put into template support, but it is still 
has lots of unhandled cases, so do not expect it will translate 
STL or Boost without need of manual fixes.

Source
https://github.com/Superbelko/ohmygentool

Windows binaries
https://github.com/Superbelko/ohmygentool/releases/tag/v0.4.0