* Disable colors on Windows because terminal looks bad otherwise
* Use environment on Windows to set PATH and make sure unit tests use
the compiled libraries and not the installed ones
* Define ssize_t on Windows as well by using SSIZE_T
Update test_analysis_block.c
Update test_intervaltree.c
Update test_unum.c
* Support more output modes for class inheritence graph.
* Refactor codexrefs and importxrefs graphs.
* Add ag_w for the commands using new mechanism.
* Separate drawable graph from r_graph.
Co-authored-by: karliss <karlis3p70l1ij@gmail.com>
