No idea about angstrom, but since it's a single folder tree, can't you just copy them from a platform where they're present (my Debian x86 build here has them, and they don't look architecture specific). I don't think you have to 'register' them with anything, just have them on your file system (though I may be wrong on this).
I can get the certs, but when I try and use codeblocks' git command to pull from github, it fails. ptitSeb mentions about running "update-ca-certificates", which is a script on his. I don't have that.
So it's not the certs I have a problem with, it's configuring things to use them