add osx support

[Eiffel-Alpine]

No description provided.

[xmik]

So, from your PR, the only difference between linux and darwin shell is one line, on linux:

const ioctlReadTermios = syscall.TCGETS

and on darwin:

const ioctlReadTermios = syscall.TIOCGETA

Is this PR a WIP or do you wanted to just show me the tested version that works on osx?

[Eiffel-Alpine]

yes that is the only difference. it is up to you what to do. i tested the change and it works.

[xmik]

@Eiffel-Alpine, I incorporated your changes and added you to changelog https://github.com/ai-traders/dojo/releases/tag/0.3.2. From now on, Dojo will be cross compiled and there will be two binaries released: one for Linux and one for Darwin.