add chipmunk physics package

How do I know the test ran successfully?

```
$ make chipmunk
[target]   i686-pc-mingw32.static with 1 goal from command line
[build]    chipmunk
[done]     chipmunk
```
> while cmake does the correct way automatically:

Are you sure about this? I thought for sure if you do not add the install command then nothing is set to install when you run `make install`. Or are you saying to just leave off the `DESTINATION` argument? Or are you saying that mxe does not run the `install` step and instead only does `make`?