Implement Preprocessor

[Krzmbrzl]

When preprocessing files before parsing them errors like the second one in #162 could be avoided.

But before this can be done, #72 has to be implemented

[Krzmbrzl]

This might be helpful: https://github.com/shevek/jcpp

[Krzmbrzl]

The preprocessor should be make use of #72 in order to fix #117

[Krzmbrzl]

After having implemented the preprocessor it should be used to preprocess config.cpp-files before they get handled inside ModUtils.getFunctions(File, Collection<Function>)

[Krzmbrzl]

Okay as it turns out Arma doesn't use the C-preprocessor... So I'll have to write it from scratch

[Krzmbrzl]

Here's what it need to be able to do: https://community.bistudio.com/wiki/PreProcessor_Commands

Plus Macros inside single quotes are being expanded while the ones inside double quotes are not

- delimits words